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.

A264326 Number of permutations of [n] with exactly seven (possibly overlapping) occurrences of the consecutive pattern 3412.

Table of values

n a(n)
16 1
17 348
18 184964
19 37331800
20 4838911370
21 464380098592
22 35861849944448
23 2368950978884920
24 140048359125251970
25 7656366194099685024
26 396295578652586265936
27 19754556228617612401848
28 960237883152840490862664
29 45936904818881537730689976
30 2177814852070869127205627616

List of values

[1, 348, 184964, 37331800, 4838911370, 464380098592, 35861849944448, 2368950978884920, 140048359125251970, 7656366194099685024, 396295578652586265936, 19754556228617612401848, 960237883152840490862664, 45936904818881537730689976, 2177814852070869127205627616]

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

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