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A110113 Diagonal sums of A083856. 0
0, 1, 2, 3, 5, 9, 17, 34, 71, 154, 346, 802, 1914, 4693, 11800, 30379, 79963, 214925, 589223, 1645994, 4681037, 13541446, 39817560, 118925810, 360577616, 1109158545, 3459636358, 10936941299, 35026082521, 113588037953 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

COMMENTS

Sums of antidiagonals of A083856.

FORMULA

a(n)=sum{k=0..n, ((1+sqrt(4(k-n)+1))/2)^n/sqrt(4(k-n)+1)-((1-sqrt(4(k-n)+1))/2)^n/sqrt(4(k-n)+1)}

CROSSREFS

Sequence in context: A061902 A166286 A179807 * A137155 A014227 A064769

Adjacent sequences:  A110110 A110111 A110112 * A110114 A110115 A110116

KEYWORD

easy,nonn

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Jul 12 2005

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.