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A112000 One half of third column (k=2) of triangle A111999. 1
-3, 65, -1190, 22050, -433125, 9144135, -208107900, 5099994900, -134219460375, 3781060408125, -113633468798850, 3631422078033750, -123022987568105625, 4405418319999571875, -166312279434175875000, 6602853358582065585000, -275059081486584416896875 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

FORMULA

a(n)=A111999(n+3, 2)/2, n>=0

CROSSREFS

Cf. Second (k=1) column: A000906(n+2)*(-1)^n = 2*A000457(n+2)*(-1)^n, n>=0.

Sequence in context: A196586 A197043 A188984 * A012804 A012837 A036778

Adjacent sequences:  A111997 A111998 A111999 * A112001 A112002 A112003

KEYWORD

sign,easy

AUTHOR

Wolfdieter Lang (wolfdieter.lang_AT_physik_DOT_uni-karlsruhe_DOT_de), Sep 12 2005

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Last modified February 14 05:09 EST 2012. Contains 205570 sequences.