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Search: id:A131793
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A131793 3 odds, 3 evens. +0
1
1, 3, 5, 2, 4, 6, 7, 9, 11, 8, 10, 12, 13, 15, 17, 14, 16, 18, 19, 21, 23, 20, 22, 24, 25, 27, 29, 26, 28, 30, 31, 33, 35, 32, 34, 36, 37, 39, 41, 38, 40, 42, 43, 45, 47, 44, 46, 48, 49, 51, 53, 50, 52, 54, 55, 57, 59, 56, 58, 60, 61, 63, 65, 62, 64, 66, 67, 69, 71, 68, 70, 72 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n)=Sum_{k=0..n}{(1/30)*{7*(k mod 6)+2*[(k+1) mod 6]-23*[(k+2) mod 6]+27*[(k+3) mod 6]+2*[(k+4) mod 6]-3*[(k+5) mod 6]}} - Paolo P. Lava (ppl(AT)spl.at), Dec 19 2007

CROSSREFS

Adjacent sequences: A131790 A131791 A131792 this_sequence A131794 A131795 A131796

Sequence in context: A076562 A113475 A104807 this_sequence A065186 A081964 A082817

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Oct 23 2007

page 1

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Last modified October 13 09:05 EDT 2008. Contains 145008 sequences.


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