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%I #5 May 26 2024 02:53:24
%S 1,37,892,18096,338937,6126649,109501246,1963185574,35629128055,
%T 658556882075,12450568185864
%N Number of permutations of 1..n containing the relative rank sequence { 213564 } at any spacing.
%C Same series for 465321 312456 123564 654213 546321 231456 123645 654132 465312 312465 564213 546312 231465 213645 564132 456132 321645 231654 546123 456213 321564 312654 465123
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PermutationPattern.html">Permutation Pattern</a>
%Y Cf. A056986, A158005, A158423.
%K nonn
%O 6,2
%A _R. H. Hardin_, Apr 05 2009