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.

A212924 Number of n X n 0..n-1 arrays with no column j greater than column j-1 in all rows.

Table of values

n a(n)
1 1
2 15
3 18226
4 4041974015
5 285912852294921876
6 10046278068363977051128904352
7 252848108054080530934326716965286554552380
8 6218295117529777826597449794390561827118547543121719263231
9 195564579665280381327483744593329391511083800439826359765867240005114671403240

List of values

[1, 15, 18226, 4041974015, 285912852294921876, 10046278068363977051128904352, 252848108054080530934326716965286554552380, 6218295117529777826597449794390561827118547543121719263231, 195564579665280381327483744593329391511083800439826359765867240005114671403240]

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

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