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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.

A049815 a(n) = Sum_{k=1..n} T(n,k), array T as in A049805.

Table of values

n a(n)
1 2
2 5
3 10
4 16
5 26
6 34
7 50
8 63
9 82
10 98
11 127
12 144
13 181
14 205
15 237
16 268
17 320
18 347
19 407
20 442
21 493
22 537
23 613
24 651
25 729
26 782
27 855
28 911
29 1014
30 1057
31 1170
32 1240
33 1331
34 1405
35 1512
36 1574
37 1716
38 1801
39 1911
40 1992
41 2152
42 2219
43 2389
44 2487

List of values

[2, 5, 10, 16, 26, 34, 50, 63, 82, 98, 127, 144, 181, 205, 237, 268, 320, 347, 407, 442, 493, 537, 613, 651, 729, 782, 855, 911, 1014, 1057, 1170, 1240, 1331, 1405, 1512, 1574, 1716, 1801, 1911, 1992, 2152, 2219, 2389, 2487]

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

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