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Search: id:A134006
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A134006 1^n + 3^n + 5^n + 7^n. +0
3
4, 16, 84, 496, 3108, 20176, 134004, 903856, 6161988, 42326416, 292299924, 2026332016, 14085959268, 98111307856, 684331371444, 4778093436976, 33385561506948, 233393582580496, 1632228682596564, 11417969833962736 (list; graph; listen)
OFFSET

0,1

FORMULA

a(n) = 15 a(n-1) - 71 a(n-2) + 105 a(n-3) - 48

EXAMPLE

a(3)=84 because 1^2+3^2+5^2+7^2=84

MATHEMATICA

Table[1^n+3^n+5^n+7^n, {n, 0, 30}]

CROSSREFS

Cf. A034472, A074507, A134007.

Sequence in context: A022564 A123010 A121146 this_sequence A090013 A125793 A121145

Adjacent sequences: A134003 A134004 A134005 this_sequence A134007 A134008 A134009

KEYWORD

nonn

AUTHOR

Artur Jasinski (grafix(AT)csl.pl), Oct 01 2007

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Last modified December 4 21:35 EST 2008. Contains 151309 sequences.


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