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A152544 Column 2 of triangle A152541. 3
3, 12, 128, 2162, 49600, 1432844, 49817952, 2023012156, 93912730296, 4904242685400, 284505673264128, 18151332186337616, 1263090275990339328, 95206191201187298144, 7727681258907211662080, 672032111511007152558288 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
CROSSREFS
Sequence in context: A073987 A317802 A138392 * A280115 A264149 A035087
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Dec 12 2008
STATUS
approved

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)