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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..19.

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: A231617 A094735 A067306 * A071720 A273998 A111685

Adjacent sequences:  A261062 A261063 A261064 * A261066 A261067 A261068

KEYWORD

nonn,easy

AUTHOR

R. J. Mathar, Aug 08 2015

STATUS

approved

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Last modified March 30 15:42 EDT 2020. Contains 333127 sequences. (Running on oeis4.)