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.

A331642 Number of binary matrices with 5 columns and any number of distinct nonzero rows with n ones in every column.

Table of values

n a(n)
0 1
1 541
2 449520
3 329520720
4 179438982360
5 70302503250720
6 19330575525676800
7 3970208270468160000
8 607903979228432409600
9 70957474321212775296000
10 6333776843022254545920000
11 419451089306915623845888000
12 20409207470176316989317120000
13 721332390787558700622151680000

List of values

[1, 541, 449520, 329520720, 179438982360, 70302503250720, 19330575525676800, 3970208270468160000, 607903979228432409600, 70957474321212775296000, 6333776843022254545920000, 419451089306915623845888000, 20409207470176316989317120000, 721332390787558700622151680000]

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

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