1/12 of the number of permutations of 3 indistinguishable copies of 1..n with exactly 5 local maxima.

A152502

1/12 of the number of permutations of 3 indistinguishable copies of 1..n with exactly 5 local maxima.

Terms

    a(0) =0a(1) =0a(2) =1a(3) =7274a(4) =6251162a(5) =2764274116a(6) =897380159188

External references