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.

A264320 Number of permutations of [n] with exactly one occurrence of the consecutive pattern 3412.

Table of values

n a(n)
4 1
5 10
6 88
7 794
8 7639
9 79164
10 885128
11 10657588
12 137752283
13 1904555934
14 28068929900
15 439495830750
16 7288494061255
17 127654030808304
18 2355066281798588
19 45655570757683888
20 927984709909530539
21 19735811069218548106
22 438344811235148801632
23 10149979837759608190794

List of values

[1, 10, 88, 794, 7639, 79164, 885128, 10657588, 137752283, 1904555934, 28068929900, 439495830750, 7288494061255, 127654030808304, 2355066281798588, 45655570757683888, 927984709909530539, 19735811069218548106, 438344811235148801632, 10149979837759608190794]

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

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