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A000764 Boustrophedon transform of Bell numbers. 0
1, 2, 5, 16, 60, 258, 1247, 6686, 39371, 252688, 1756920, 13168178, 105949517, 911834394, 8367625793, 81642384468, 844718036940, 9245285569526, 106790005796627, 1298920385093126, 16602066548692623 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

J. Millar, N. J. A. Sloane and N. E. Young, A new operation on sequences: the Boustrophedon on transform, J. Combin. Theory, 17A 44-54 1996 (Abstract, pdf, ps).

N. J. A. Sloane, Transforms

Index entries for sequences related to boustrophedon transform

FORMULA

E.g.f.: (tan x + sec x)*exp( exp(x)-1 ).

CROSSREFS

Sequence in context: A059237 A104547 A186999 * A205486 A210668 A005036

Adjacent sequences:  A000761 A000762 A000763 * A000765 A000766 A000767

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 26 02:03 EDT 2013. Contains 225652 sequences.