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A159165
Number of permutations of 1..n containing the relative rank sequence { 254613 } at any spacing.
0
1, 37, 894, 18211, 342874, 6232019, 111948601, 2015190380, 36671453377, 678640743735
OFFSET
6,2
COMMENTS
Same series for 354162 423615 261453 516324 316452 461325 523164
LINKS
Eric Weisstein's World of Mathematics, Permutation Pattern
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 05 2009
STATUS
approved