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A135903
Column 0 of triangle
A135902
; also equals column 2 of triangle
A135902
(shift right).
+0
4
1, 1, 3, 15, 102, 860, 8548, 97094, 1234324, 17302880, 264503376, 4371376170, 77567318328, 1469440535360, 29578625457508, 630090773216810, 14155112389880376, 334337856517696916, 8280411098557369468
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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