id:A135208 - OEIS Search Results

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a(n)=Sum_digits{C(n,Sum_digits[a(n-1)]}, with a(0)=1.

+0
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1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 2, 12, 16, 12, 14, 21, 14, 27, 29, 29, 24, 21, 16, 18, 29, 29, 36, 30, 18, 21, 22, 23, 24, 25, 26, 18, 22, 24, 24, 33, 42, 37, 46, 50, 27, 23, 33, 21, 19, 37, 48, 52, 26, 36, 33, 36, 60, 36, 42, 28, 42, 37, 36, 43, 42, 51, 60, 33, 46, 49, 64, 45 (list; graph; listen)

	OFFSET	`0,3`
	MAPLE	`P:=proc(n) local a, i, k, w; a:=1; print(a); for i from 1 by 1 to n do w:=0; k:=a; while k>0 do w:=w+k-(trunc(k/10)10); k:=trunc(k/10); od; k:=binomial(i, w); w:=0; while k>0 do w:=w+k-(trunc(k/10)10); k:=trunc(k/10); od; a:=w; print(w); od; end: P(100);`
	CROSSREFS	`Cf. A128936, A129630, A129631, A130843.` `Sequence in context: A114570 A115026 A101337 this_sequence A156207 A061486 A138470` `Adjacent sequences: A135205 A135206 A135207 this_sequence A135209 A135210 A135211`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paolo P. Lava (ppl(AT)spl.at), Dec 03 2007`

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.

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