Number of permutations of an n-sequence discordant with three given permutations (see reference) in n-1 places.
15, 72, 609, 4960, 46188, 471660, 5275941, 64146768, 842803767, 11902900380
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Fri Oct 29 05:35:16 CEST 2010 [seqfan] Implementing first 500 sequences in Java