A180386 Number of increasing sequences of n integers x(1),...,x(n) with values in 1..4*n such that x(j) divides x(k) if j divides k

4, 12, 69, 143, 1051, 1041, 6722, 8485, 15907, 8500, 71585, 72304, 374159, 192093, 132237, 83720, 495591, 405716, 2262354, 2347020, 1676501, 478044, 3315250, 5160917, 5831333, 1762619, 2192192, 1666381, 8506917, 12211917, 58000458

Offset

1,1

Comments

Column 4 of A180383

Links

R. H. Hardin, Table of n, a(n) for n=1..38

Crossrefs

Sequence in context: A000843 A369284 A358409 * A302434 A121771 A009621

Adjacent sequences: A180383 A180384 A180385 * A180387 A180388 A180389

Keyword

nonn

Author

R. H. Hardin Sep 01 2010

Status

approved