id:A145287 - OEIS Search Results

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a(n) = number of monomials in n-th power of polynomial x^5+x^4+x^3+x^2+x+1

+0
1

6, 11, 16, 21, 26, 31, 36, 41, 46, 51, 56, 61, 66, 71, 76, 81, 86, 91, 96, 101, 106, 111, 116, 121, 126, 131, 136, 141, 146, 151, 156, 161, 166, 171, 176, 181, 186, 191, 196, 201, 206, 211, 216, 221, 226, 231, 236, 241, 246, 251, 256, 261, 266, 271, 276, 281 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n)=Length[(x^5+x^4+x^3+x^2+x+1)^n]`
	FORMULA	`a(n)= 5n+1 = A016861(n). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 11 2008]`
	MATHEMATICA	`a = {}; k = x^5 + x^4 + x^3 + x^2 + x + 1; m = k; Do[AppendTo[a, Length[m]]; m = Expand[mk], {n, 1, 100}]; a (Artur Jasinski*)`
	CROSSREFS	`Sequence in context: A080900 A080783 A016861 this_sequence A140232 A085813 A140527` `Adjacent sequences: A145284 A145285 A145286 this_sequence A145288 A145289 A145290`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 06 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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