A177327 Number of permutations of n copies of 1..6 with all adjacent differences <= 3 in absolute value.

180, 516180, 2626916040, 17268436078740, 131319696504676680, 1097239851330486263400, 9792481437399343532438160, 91756879673807945288868127380

Offset

1,1

Links

Table of n, a(n) for n=1..8.

Crossrefs

Sequence in context: A146530 A057867 A075871 * A358413 A236235 A225349

Adjacent sequences: A177324 A177325 A177326 * A177328 A177329 A177330

Keyword

nonn

Author

R. H. Hardin May 06 2010

Status

approved