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A154415
The middle Stirling numbers of first kind: a(n) = Stirling1(n, floor(n/2)).
1
1, 0, -1, 2, 11, -50, -225, 1624, 6769, -67284, -269325, 3416930, 13339535, -206070150, -790943153, 14409322928, 54631129553, -1146901283528, -4308105301929, 102417740732658, 381922055502195, -10142299865511450
OFFSET
0,4
COMMENTS
The signless central Stirling numbers of the first kind Stirling1(2*n, n) are A187646.
LINKS
MATHEMATICA
Table[StirlingS1[n, Floor[n/2]], {n, 0, 30}]
PROG
(PARI) a(n) = stirling(n, n\2, 1); \\ Michel Marcus, Sep 16 2016
CROSSREFS
Sequence in context: A316263 A342906 A187000 * A108851 A105486 A357548
KEYWORD
sign
AUTHOR
Roger L. Bagula, Jan 09 2009
EXTENSIONS
Name clarified by Peter Luschny, Jan 06 2020
STATUS
approved