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.

A217391 Partial sums of the squares of the ordered Bell numbers (number of preferential arrangements) A000670.

Table of values

n a(n)
0 1
1 2
2 11
3 180
4 5805
5 298486
6 22228975
7 2258856824
8 300194704049
9 50529463186170
10 10505093602625139
11 2643441560563225468
12 791779611505017309493
13 278371498870260182630654
14 113516551713466910954246903
15 53143864598655784249290736512
16 28309328562668956145157858372537

List of values

[1, 2, 11, 180, 5805, 298486, 22228975, 2258856824, 300194704049, 50529463186170, 10505093602625139, 2643441560563225468, 791779611505017309493, 278371498870260182630654, 113516551713466910954246903, 53143864598655784249290736512, 28309328562668956145157858372537]

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

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