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Search: id:A141344
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A141344 Expansion of (2-sqrt(1+4x))/(2-x-sqrt(1+4x)). +0
2
1, 1, 3, 7, 19, 45, 123, 285, 807, 1771, 5407, 10587, 37627, 57619, 279783, 231615, 2307339, -387531, 21769251, -28249347, 235837791, -539858235, 2857845723, -8509970007, 37342507167, -126289733319, 510715973643, -1837291760147 (list; graph; listen)
OFFSET

0,3
COMMENT

Row sums of A141343. Hankel transform is 2^n.

CROSSREFS

Sequence in context: A146685 A146653 A096447 this_sequence A029855 A110014 A026581

Adjacent sequences: A141341 A141342 A141343 this_sequence A141345 A141346 A141347

KEYWORD

easy,sign

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jun 26 2008

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Last modified December 2 15:58 EST 2008. Contains 150992 sequences.

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