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A177301 Number of permutations of 5 copies of 1..n with all adjacent differences <= 1 in absolute value. 2
1, 1, 252, 7002, 284002, 8956752, 276285002, 8039989002, 226901044252, 6232521421502, 167765555015002, 4441865811412752, 116042171156004002, 2998175631045512002, 76751828260736962252, 1949598912568702682502, 49197330547669842130002, 1234523426440511782592752 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

a(n) = (5n)!/120^n = A014609(n) for n<=2.

LINKS

Andrew Howroyd, Table of n, a(n) for n = 0..200

CROSSREFS

Cf. A014609.

Column k=5 of A331562.

Sequence in context: A250085 A024018 A270853 * A250376 A329755 A109924

Adjacent sequences:  A177298 A177299 A177300 * A177302 A177303 A177304

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 06 2010

EXTENSIONS

a(10) from Alois P. Heinz, Jan 21 2020

Terms a(11) and beyond from Andrew Howroyd, May 15 2020

STATUS

approved

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Last modified April 13 20:46 EDT 2021. Contains 342941 sequences. (Running on oeis4.)