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.

A159175 Number of permutations of 1..n containing the relative rank sequence { 1234567 } at any spacing.

Table of values

n a(n)
7 1
8 50
9 1578
10 40884
11 958809
12 21353634
13 463945294
14 9996042284
15 215831724525
16 4702905606350
17 103912444955422
18 2336099774748540
19 53567906041439136
20 1255172323669315848
21 30095426182382305848
22 739238316780966277616
23 18619024923770934306358
24 481234428294016650524172

List of values

[1, 50, 1578, 40884, 958809, 21353634, 463945294, 9996042284, 215831724525, 4702905606350, 103912444955422, 2336099774748540, 53567906041439136, 1255172323669315848, 30095426182382305848, 739238316780966277616, 18619024923770934306358, 481234428294016650524172]

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

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