Number of ways to pair up {1^2, 2^2, ..., (2n)^2 } so sum of each pair is prime.
1, 1, 2, 4, 12, 9, 72, 160, 428, 2434, 3011, 10337, 126962, 264182, 783550, 5004266
1 seqfan posts
Fri Oct 29 05:35:16 CEST 2010 [seqfan] Implementing first 500 sequences in Java