35		35		35
Gb5-10		Gb6-17 (400)		Gb7-25 (436)		Gb8-30 (472)
364 = 14 * 26	108 = 3 * 36

	35		35		35
Gb1-26		Gb3-1 (292)		Gb4-7 (328)		Gb5-10 (364)
256 = 8 * 32	108 = 3 ' 36

Therefore we should try to interpret mama at number 108 as another such glyph marker:

	35		35			34
Gb8-30 (472)		Ga2-5 (36)		Ga3-12 (72)	Ga3-13		Ga4-24 (108)
472 = 8 * 59	108 = 3 ' 36

Niu / vaha mea in Ga3-13 jumps up into our field of attention. This one has an open 'limb' in front. But let us continue:

	35		35		35
Ga4-24 (108)		Ga6-3 (144)		Ga7-20 (180)		Ga8-12 (216)
108 = 9 * 12	108 = 3 ' 36

Between Ga8-12 and Gb1-26 there are 39 glyphs and room for another 36-glyph step:

	35
Ga8-12		Gb1-22 (252)
216 = 6 * 36	36

My sense of order says, though, that we should end already with Ga7-20, because 180 = 3 * 36 + 2 * 36 is a structure characterized by 3 followed by 2 (and 3 + 2 = 5 or 'fire'):

35		35		35
	Ga2-5 (36)		Ga3-12 (72)		Ga4-24 (108)
108 = 3 ' 36

35		35
	Ga6-3 (144)		Ga7-20 (180)
72 = 2 ' 36

Mama in Ga4-24 is here the last glyph of the 3-fingered season of growth and beyond lies the waning (2nd) season.

Ga7-20 exhibits a closed fist and its oval form could motivate a location among the mama glyphs. And indeed all the final glyphs seem to be (for various reasons) dark characters:

Gb6-17 (400)	Gb7-25 (436)	Gb8-30 (472)
Gb5-10 (364)	Gb4-7 (328)	Gb3-1 (292)

	4 = 472 - 468 = 8 * 59 - 13 * 36
Gb1-22 (252)
Ga8-12 (216)	Ga7-20 (180)	Ga6-3 (144)
Ga2-5 (36)	Ga3-12 (72)	Ga4-24 (108)

Here I have amused myself by moving from left to right and upwards in rongorongo fashion, alternating the direction of time at each step upwards. Though I have not turned the glyphs upside down in lines with even numbers.

The pattern suggests a connection between these 13 glyphs and the final 13 days in a calendar stretching for 472 days. 36 days in a month would then reach 360 days after 10 months.

Vaha kai in Gb5-10 (where 5 or 'fire' is combined with 10 for the number of months with 'fire' present) is glyph number 364 instead of 360 because of 4 glyphs in the interval between Gb1-22 and Gb2-1 (although Gb1-20--25 seem to form a group):

Maybe we should say that in a day there are 2 glyphs (one for the daytime and one for the night), in which case 10 months will stretch for 180 days. This would eliminate the discrepancy between 10 months on one hand and a single 'limb' on the other.