References to A000475

Rencontres numbers: permutations with exactly 4 fixed points.
1, 0, 15, 70, 630, 5544, 55650, 611820, 7342335, 95449640, 1336295961


1 seqfan posts

Fri Oct 29 05:35:16 CEST 2010    [seqfan] Implementing first 500 sequences in Java

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
Links to OEIS content are included according to The OEIS End-User License Agreement .