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A180381 Number of increasing sequences of n integers x(1),...,x(n) with values in 1..4*n such that x(j) divides x(k) iff j divides k 1
4, 12, 53, 101, 471, 214, 803, 1037, 1086, 369, 2002, 618, 3093, 817, 277, 405, 1974, 967, 5929, 3567, 2876, 580, 5174, 3300, 2903, 598, 563, 562, 5866, 3324, 29659, 23996, 18102, 3354, 3273, 3273, 32515, 4605, 3300, 3300, 36659, 20746, 188560, 135708 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A180378

LINKS

R. H. Hardin, Table of n, a(n) for n=1..82

CROSSREFS

Sequence in context: A317281 A190342 A262745 * A149413 A149414 A053454

Adjacent sequences:  A180378 A180379 A180380 * A180382 A180383 A180384

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 01 2010

STATUS

approved

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Last modified December 3 20:35 EST 2021. Contains 349468 sequences. (Running on oeis4.)