login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A158423 Number of permutations of 1..n containing the relative rank sequence { 23145 } at any spacing. 106
1, 26, 459, 7034, 101953, 1454402, 20863742, 304906732, 4578822750, 71092815624, 1146499731400, 19270199314388 (list; graph; refs; listen; history; text; internal format)
OFFSET

5,2

COMMENTS

Same series for 43521 12534 54132 35421 31245 12453 54213 43512 23154 21534 45132 35412 31254 21453 45213.

LINKS

Table of n, a(n) for n=5..16.

Eric Weisstein's World of Mathematics, Permutation Pattern

FORMULA

Conjecture: a(n) + A116485(n) = n!. - Benedict W. J. Irwin, Mar 15 2016

CROSSREFS

Cf. A056986, A158005, A116485.

Sequence in context: A158432 A021974 A158433 * A158430 A158435 A158424

Adjacent sequences:  A158420 A158421 A158422 * A158424 A158425 A158426

KEYWORD

nonn,more

AUTHOR

R. H. Hardin, Mar 18 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 21 22:02 EDT 2019. Contains 325210 sequences. (Running on oeis4.)