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Search: id:A022041
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A022041 a(n)=3a(n-1)+a(n-2)-a(n-3)+a(n-6)-a(n-7)+a(n-10)-a(n-11). +0
2
2, 6, 19, 61, 196, 630, 2026, 6516, 20957, 67403, 216786, 697242, 2242518, 7212542, 23197478, 74609338, 239963729, 771787993, 2482278087, 7983674995, 25677649398, 82586237418, 265619586324, 854304141280, 2747672247776 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A118364 A052544 A001169 this_sequence A018906 A014010 A022015

Adjacent sequences: A022038 A022039 A022040 this_sequence A022042 A022043 A022044

KEYWORD

nonn

AUTHOR

R. K. Guy (rkg(AT)cpsc.ucalgary.ca)

EXTENSIONS

Corrected by Franklin T. Adams-Watters, Oct 25 2006

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Last modified December 4 14:15 EST 2008. Contains 151279 sequences.

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