A190920 - cp's OEIS frontend

A190920 Number of permutations of n copies of 1..5 introduced in order 1..5 with no element equal to another within a distance of 1.

n	a(n)
1	1
2	329
3	163386
4	98371884
5	66218360625
6	47940557125969
7	36533294879349056
8	28920026907938624194
9	23575497690601916022516
10	19672658572012343899666292
11	16730974132035148942028759656
12	14455459908454408519322566567054

[1, 329, 163386, 98371884, 66218360625, 47940557125969, 36533294879349056, 28920026907938624194, 23575497690601916022516, 19672658572012343899666292, 16730974132035148942028759656, 14455459908454408519322566567054]

cp's OEIS Frontend

A190920 Number of permutations of n copies of 1..5 introduced in order 1..5 with no element equal to another within a distance of 1.

Table of values

List of values