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A087936 Perrin sequence of order 6. +0
3
6, 0, 0, 0, 0, 5, 6, 0, 0, 0, 5, 11, 6, 0, 0, 5, 16, 17, 6, 0, 5, 21, 33, 23, 6, 5, 26, 54, 56, 29, 11, 31, 80, 110, 85, 40, 42, 111, 190, 195, 125, 82, 153, 301, 385, 320, 207, 235, 454, 686, 705, 527, 442, 689, 1140, 1391, 1232, 969, 1131, 1829, 2531, 2623, 2201, 2100 (list; graph; listen)
OFFSET

0,1

COMMENT

If p is prime, p divides a(p).

LINKS

T. D. Noe, Table of n, a(n) for n=0..1000

FORMULA

a(0)=6, a(1)=a(2)=a(3)=a(4)=0, a(5)=5, a(n)=a(n-5)+a(n-6); a(n)=sum (x_i)^n where (x_i) 1<=i<=6 are the roots of x^6=x+1

CROSSREFS

Cf. A001608, A050443.

Cf. A087935

Sequence in context: A102638 A005872 A035322 this_sequence A089804 A087255 A097606

Adjacent sequences: A087933 A087934 A087935 this_sequence A087937 A087938 A087939

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Oct 27 2003

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Last modified September 7 15:23 EDT 2008. Contains 143483 sequences.


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