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A082758
Sum of the squares of the trinomial coefficients (
A027907
).
+0
5
1, 3, 19, 141, 1107, 8953, 73789, 616227, 5196627, 44152809, 377379369, 3241135527, 27948336381, 241813226151, 2098240353907, 18252025766941, 159114492071763, 1389754816243449, 12159131877715993, 106542797484006471
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.
AT&T Labs Research
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