cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A321669 Number of permutations of 9 copies of 1..n introduced in order 1..n with no element equal to another within a distance of 1.

Table of values

n a(n)
0 1
1 0
2 1
3 2872754
4 104650147201049
5 23575497690601916022516
6 24302858067615766089801166488125
7 91155245844064069307740171414201519055298
8 1046031892354833895113128900608177633584652958677057
9 32119646666355552112999645991677870426882424139287301894021793

List of values

[1, 0, 1, 2872754, 104650147201049, 23575497690601916022516, 24302858067615766089801166488125, 91155245844064069307740171414201519055298, 1046031892354833895113128900608177633584652958677057, 32119646666355552112999645991677870426882424139287301894021793]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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