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A077764
Number of ways of pairing the even squares of the numbers 1 to n with the odd squares of the numbers n+1 to 2n such that each pair sums to a prime. a(1) is defined to be 1.
+0
3
1, 1, 1, 1, 1, 1, 1, 1, 2, 4, 4, 8, 6, 14, 14, 44, 22, 30, 12, 41, 137, 667, 401, 517, 149, 286, 306, 1312
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.
AT&T Labs Research
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