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A177328 Number of permutations of n copies of 1..7 with all adjacent differences <= 3 in absolute value. 1

%I

%S 1,428,6068622,171548183912,6595449547140990,302061042944500510428,

%T 15490059482899736687180550

%N Number of permutations of n copies of 1..7 with all adjacent differences <= 3 in absolute value.

%K nonn

%O 0,2

%A _R. H. Hardin_, May 06 2010

%E a(0) and a(6) from _Alois P. Heinz_, Jan 20 2020

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Last modified September 18 01:39 EDT 2021. Contains 347504 sequences. (Running on oeis4.)