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%I #6 Oct 02 2025 22:34:45
%S 1,26,461,7104,103479,1481275,21284288,311031666,4663993186,
%T 72241115375,1161657944287
%N Number of permutations of 1..n containing the relative rank sequence { 42513 } at any spacing.
%C Same series for 24153 31524 35142
%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PermutationPattern.html">Permutation Pattern</a>
%Y A056986 A158005
%K nonn
%O 5,2
%A _R. H. Hardin_, Mar 18 2009