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.

A151655 Number of permutations of 6 indistinguishable copies of 1..n with exactly 6 adjacent element pairs in decreasing order.

Table of values

n a(n)
1 0
2 1
3 5703096
4 66555527346
5 192698692565176
6 316974599311624359
7 397768872682646100636
8 434043806185138225218436
9 439395848635147188368481612
10 426929358472916282151832375761
11 405535686731345325826890883972000
12 380430912675288777613784486729018310

List of values

[0, 1, 5703096, 66555527346, 192698692565176, 316974599311624359, 397768872682646100636, 434043806185138225218436, 439395848635147188368481612, 426929358472916282151832375761, 405535686731345325826890883972000, 380430912675288777613784486729018310]

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

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