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A276892
Number of ordered set partitions of [2n] where k=n is minimal such that for each block b the smallest integer interval containing b has at most k elements.
2
1, 2, 20, 878, 79682, 12043772, 2716968332, 853336081124, 355520118746132, 189580735777428836, 125874638274228457172, 101804159684084842005380, 98514573603328714169588852, 112376135259125932230989633060, 149216698787792363945310009639572
OFFSET
0,2
FORMULA
a(n) = A276891(2n,n).
CROSSREFS
Sequence in context: A163594 A193483 A013148 * A006547 A290883 A135757
KEYWORD
nonn
AUTHOR
Alois P. Heinz, Sep 21 2016
STATUS
approved