id:A007822 - OEIS Search Results

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Number of symmetric foldings of 2n+1 stamps.

+0
2

1, 3, 9, 28, 89, 287, 935, 3072, 10157, 33767, 112736, 377836, 1270203, 4282311, 14470629, 49005732, 166261653, 565055147, 1923186472, 6554868916 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`J. E. Koehler, Folding a strip of stamps, J. Combin. Theory, 5 (1968), 135-152.` `W. F. Lunnon, A map-folding problem, Math. Comp. 22 (1968), 193-199.`
	LINKS	`Index entries for sequences obtained by enumerating foldings`
	CROSSREFS	`Cf. A001010.` `Sequence in context: A022020 A049220 A094790 this_sequence A094164 A094803 A094826` `Adjacent sequences: A007819 A007820 A007821 this_sequence A007823 A007824 A007825`
	KEYWORD	`nonn`
	AUTHOR	`legendre(AT)biologie.ens.fr (Stephane LEGENDRE)`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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