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.

A112709 Unsigned row sums of triangle A112707 (partial sums of Catalan numbers multiplied by powers of negative numbers).

Table of values

n a(n)
0 1
1 2
2 2
3 5
4 14
5 65
6 376
7 2613
8 20761
9 184756
10 1816330
11 19526217
12 227588213
13 2855033988
14 38311846704
15 547128228043
16 8279365967056
17 132259968568859
18 2223048616707842
19 39199883209336095
20 723269314782624612

List of values

[1, 2, 2, 5, 14, 65, 376, 2613, 20761, 184756, 1816330, 19526217, 227588213, 2855033988, 38311846704, 547128228043, 8279365967056, 132259968568859, 2223048616707842, 39199883209336095, 723269314782624612]

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

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