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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.

A121010 Numerators of partial alternating sums of Catalan numbers scaled by powers of 1/(5*8^2) = 1/320.

Table of values

n a(n)
0 1
1 319
2 51041
3 6533247
4 5226597607
5 1672511234219
6 267601797475073
7 342530300768093011
8 2192193924915795299
9 17537551399326362389569
10 2806008223892217982335239
11 1795845263291019508694523567

List of values

[1, 319, 51041, 6533247, 5226597607, 1672511234219, 267601797475073, 342530300768093011, 2192193924915795299, 17537551399326362389569, 2806008223892217982335239, 1795845263291019508694523567]

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

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