A179369 - OEIS

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A179369

Number of permutations of 1..n with i-10 <= p(i) <= i+9.

%I #6 May 26 2021 18:06:06

%S 1,2,6,24,120,720,5040,40320,362880,3628800,36288000,333486720,

%T 2855825280,23146819920,180368122320,1370761244520,10284831650616,

%U 76940070484362,578333776748674,4393756903239067,33888536448984493

%N Number of permutations of 1..n with i-10 <= p(i) <= i+9.

%H R. H. Hardin, <a href="/A179369/b179369.txt">Table of n, a(n) for n=1..31</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Jul 11 2010