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.

A203299 Second elementary symmetric function of the first n terms of (2,2,3,3,4,4,5,5...).

Table of values

n a(n)
2 4
3 16
4 37
5 77
6 133
7 223
8 338
9 506
10 710
11 990
12 1319
13 1751
14 2247
15 2877
16 3588
17 4468
18 5448
19 6636
20 7945
21 9505
22 11209
23 13211
24 15382
25 17902
26 20618
27 23738
28 27083
29 30891
30 34955
31 39545
32 44424
33 49896
34 55692
35 62152
36 68973
37 76533
38 84493
39 93271
40 102490

List of values

[4, 16, 37, 77, 133, 223, 338, 506, 710, 990, 1319, 1751, 2247, 2877, 3588, 4468, 5448, 6636, 7945, 9505, 11209, 13211, 15382, 17902, 20618, 23738, 27083, 30891, 34955, 39545, 44424, 49896, 55692, 62152, 68973, 76533, 84493, 93271, 102490]

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

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