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A261065
Second column of A086872.
2
1, 8, 75, 840, 11025, 166320, 2837835, 54054000, 1137161025, 26189163000, 655383804075, 17709112020600, 513880482740625, 15938200818540000, 526174085058496875, 18422283260401020000, 681816379418800250625, 26597171457203972625000, 1090705672840839577396875
OFFSET
1,2
FORMULA
(n-1)*(n+1)*a(n) -n*(n+2)*(2*n-1)*a(n-1)=0.
G.f. x*3F1(3/2,4,2; 3; 2x).
a(n) = A001879(n-1)+2*A001880(n+2).
CROSSREFS
Cf. A086872.
Sequence in context: A094735 A067306 A361528 * A071720 A273998 A111685
KEYWORD
nonn,easy
AUTHOR
R. J. Mathar, Aug 08 2015
STATUS
approved