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A054487
A second order recursive sequence.
+0
3
1, 14, 90, 390, 1320, 3762, 9438, 21450, 45045, 88660, 165308, 294372, 503880, 833340, 1337220, 2089164, 3187041, 4758930, 6970150, 10031450, 14208480, 19832670, 27313650, 37153350, 49961925, 66475656, 87576984, 114316840
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
)
Last modified November 25 08:46 EST 2009. Contains 167481 sequences.
AT&T Labs Research
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