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A157546
Half the number of length n integer sequences with sum zero and sum of squares 392.
+0
1
1, 9, 54, 1290, 47385, 1080891, 19941831, 335927439, 5541820740, 87714576070, 1349748111657, 20228679068676, 290345411571852, 3966279413712840, 51810189395306490, 652108043960695984, 7955418278826810531
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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