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A026598 Sum{T(i,j)}, 0<=j<=i, 0<=i<=n, T given by A026584. 0
1, 2, 6, 14, 37, 91, 234, 588, 1502, 3808, 9715, 24727, 63095, 160899, 410764, 1048598, 2678327, 6841725, 17482478, 44678724, 114205286, 291963048, 746504245, 1908907425, 4881860810, 12486083994, 31937825727, 81699259367 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..27.

FORMULA

Conjecture: n*a(n) +(-4*n+3)*a(n-1) +(-2*n+3)*a(n-2) +5*(4*n-9)*a(n-3) +7*(-n+3)*a(n-4) +6*(-4*n+15)*a(n-5) +8*(2*n-9)*a(n-6)=0. - R. J. Mathar, Jun 23 2013

CROSSREFS

Sequence in context: A171924 A144530 A248113 * A006864 A217420 A071636

Adjacent sequences:  A026595 A026596 A026597 * A026599 A026600 A026601

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 27 20:19 EST 2014. Contains 250264 sequences.