id:A145285 - OEIS Search Results

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

+0
1

5, 8, 12, 16, 20, 25, 28, 32, 37, 41, 45, 49, 53, 57, 61, 65, 69, 73, 77, 81, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 129, 133, 137, 141, 145, 149, 153, 157, 161, 165, 169, 173, 177, 181, 185, 189, 193, 197, 201, 205, 209, 213, 217, 221, 225, 229, 233 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n)=Length[(x^4-x^3-x^2-x-1)^n]`
	MATHEMATICA	`a = {}; k = 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: A108173 A047383 A133795 this_sequence A167615 A069102 A001043` `Adjacent sequences: A145282 A145283 A145284 this_sequence A145286 A145287 A145288`
	KEYWORD	`nonn`
	AUTHOR	`Artur Jasinski (grafix(AT)csl.pl), Oct 06 2008`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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