A177319 Number of permutations of n copies of 1..7 with all adjacent differences <= 1 in absolute value.

1, 2, 148, 41618, 16699380, 8039989002, 4339892975512, 2535604038015218, 1570273521448103668, 1016915629343040544250, 682308706348352869913148, 471167961102713571612302730, 333217453890900855796193690520, 240438319207137787818120695999370

Offset: 0

Author

R. H. Hardin, May 06 2010

Keywords

• nonn

Links

• Andrew Howroyd, Table of n, a(n) for n = 0..100

Crossrefs

Row n=7 of A331562.

Extensions

a(0)=1 prepended by Alois P. Heinz, Jan 20 2020

Terms a(8) and beyond from Andrew Howroyd, May 16 2020