id:A137345 - OEIS Search Results

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a(n) = binomial( n(n+1)/2, n) mod n.

+0
2

0, 1, 2, 2, 3, 0, 4, 4, 5, 0, 6, 7, 7, 0, 9, 8, 9, 0, 10, 0, 3, 0, 12, 6, 13, 13, 5, 0, 15, 4, 16, 16, 24, 0, 20, 12, 19, 0, 4, 38, 21, 0, 22, 22, 30, 0, 24, 12, 25, 25, 18, 0, 27, 0, 45, 51, 51, 0, 30, 0, 31, 0, 35, 32, 35, 0, 34, 0, 33, 10, 36, 0, 37, 0, 39, 57, 14, 0, 40, 12, 5, 0, 42, 40 (list; graph; listen)

	OFFSET	`1,3`
	FORMULA	`a(n) = A014068(n) mod n. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Apr 09 2008`
	MAPLE	`P:=proc(n) local a, b, i; a:=0; for i from 1 by 1 to n do a:=a+i; b:=(binomial(a, i) mod i); print(b); od; end: P(101);`
	CROSSREFS	`Cf. A139125.` `Sequence in context: A035173 A095201 A095058 this_sequence A060755 A104594 A079626` `Adjacent sequences: A137342 A137343 A137344 this_sequence A137346 A137347 A137348`
	KEYWORD	`easy,nonn`
	AUTHOR	`Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Apr 08 2008, Apr 14 2008`

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Last modified September 5 01:44 EDT 2008. Contains 143476 sequences.

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