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Search: id:A028380
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A028380 a_n = - sum_{i=1..n-1} C(i+1, n-i) (-1)^(n-i) a_i. +0
1
0, 28, 148, 621, 2420, 9152, 34164, 126854, 470288, 1744200, 6478088, 24107105, 89908380 (list; graph; listen)
OFFSET

0,2
CROSSREFS

Sequence in context: A042530 A042532 A069917 this_sequence A002593 A015881 A026910

Adjacent sequences: A028377 A028378 A028379 this_sequence A028381 A028382 A028383

KEYWORD

nonn

AUTHOR

Grisha Berkolaiko (grisha(AT)ORY.ph.biu.ac.il)

page 1

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

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