A271795 - OEIS

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A271795

Number of set partitions of [n] having exactly eight pairs (m,m+1) such that m is in some block b and m+1 is in block b+1.

2

0, 1, 45, 1025, 16886, 232146, 2866698, 33168264, 368982178, 4012603359, 43129752228, 461687900917, 4948321226569, 53305007332086, 578747255834560, 6346136609521608, 70385831812126618, 790497553669858497, 8997272765507744260, 103842387079427555549

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OFFSET

8,3

LINKS

Alois P. Heinz, Table of n, a(n) for n = 8..300

CROSSREFS

Column k=8 of A185982.

Sequence in context: A199352 A195466 A010961 * A161690 A162183 A162418

Adjacent sequences: A271792 A271793 A271794 * A271796 A271797 A271798

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Apr 14 2016

STATUS

approved