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.

A024391 2nd elementary symmetric function of the first n+1 positive integers congruent to 2 mod 3.

Table of values

n a(n)
1 10
2 66
3 231
4 595
5 1275
6 2415
7 4186
8 6786
9 10440
10 15400
11 21945
12 30381
13 41041
14 54285
15 70500
16 90100
17 113526
18 141246
19 173755
20 211575
21 255255
22 305371
23 362526
24 427350
25 500500
26 582660
27 674541
28 776881
29 890445
30 1016025
31 1154440
32 1306536
33 1473186
34 1655290

List of values

[10, 66, 231, 595, 1275, 2415, 4186, 6786, 10440, 15400, 21945, 30381, 41041, 54285, 70500, 90100, 113526, 141246, 173755, 211575, 255255, 305371, 362526, 427350, 500500, 582660, 674541, 776881, 890445, 1016025, 1154440, 1306536, 1473186, 1655290]

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

Content is available under The OEIS End-User License Agreement.