Number of permutations of n copies of 1..5 with all adjacent differences <= 2 in absolute value.

A177323

Number of permutations of n copies of 1..5 with all adjacent differences <= 2 in absolute value.

Terms

    a(0) =1a(1) =20a(2) =3846a(3) =1173512a(4) =439192790a(5) =184619047020

External references