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A032099 "BHK" (reversible, identity, unlabeled) transform of 1,2,3,4... 0
1, 2, 5, 10, 27, 66, 181, 470, 1263, 3310, 8767, 22980, 60449, 158354, 415353, 1087690, 2849675, 7461318, 19539429, 51156950, 133944931, 350677822, 918123935, 2403693960, 6293050657, 16475457986, 43133566061 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..27.

C. G. Bower, Transforms (2)

FORMULA

G.f.: x[1-3x+5x^3-3x^5+x^6]/[(1-x)^2(1-x-x^2)(1+x-x^2)(1-3x+x^2)].

CROSSREFS

Sequence in context: A053391 A183956 A221843 * A243797 A120896 A074801

Adjacent sequences:  A032096 A032097 A032098 * A032100 A032101 A032102

KEYWORD

nonn

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified February 18 02:20 EST 2018. Contains 299297 sequences. (Running on oeis4.)