A046997 - OEIS

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A046997

Number of Baxter permutations: A001183/2.

0

0, 1, 1, 9, 33, 187, 847, 4911, 25849

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OFFSET

1,4

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A147444 A189179 A146445 * A013488 A186762 A343843

Adjacent sequences: A046994 A046995 A046996 * A046998 A046999 A047000

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane

STATUS

approved