References to A000486

One half of the number of permutations of [n] such that the differences have 4 runs with the same signs.
16, 150, 926, 4788, 22548, 100530, 433162, 1825296, 7577120, 31130190


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 .