A179359 - OEIS

%I #4 Mar 31 2012 12:35:45

%S 1,2,6,24,120,720,5040,35280,246960,1728720,11167920,68286120,

%T 404423736,2363607402,13821281314,81653389147,490572457453,

%U 2976080502144,18138009463432,110672621450160,674657720355264,4104712985389632

%N Number of permutations of 1..n with i-9<=p(i)<=i+6

%H R. H. Hardin, <a href="/A179359/b179359.txt">Table of n, a(n) for n=1..300</a>

%K nonn

%O 1,2

%A _R. H. Hardin_ Jul 11 2010