A179347 Number of permutations of 1..n with i-7<=p(i)<=i+5

1, 2, 6, 24, 120, 720, 4320, 25920, 140520, 714264, 3519294, 17234438, 85314915, 431525429, 2206564916, 11325792940, 58101677088, 297290799936, 1516751809920, 7723408117824, 39293094025152, 199936212443712, 1017919077789408

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..400

Crossrefs

Sequence in context: A189863 A293776 A179343 * A179352 A179358 A179365

Adjacent sequences: A179344 A179345 A179346 * A179348 A179349 A179350

Keyword

nonn

Author

R. H. Hardin Jul 11 2010

Status

approved