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.

A023669 Convolution of A001950 and A014306.

Table of values

n a(n)
1 0
2 2
3 7
4 12
5 19
6 30
7 42
8 57
9 75
10 93
11 114
12 137
13 162
14 191
15 222
16 255
17 292
18 330
19 372
20 414
21 457
22 504
23 553
24 605
25 660
26 716
27 777
28 839
29 903
30 972
31 1041
32 1114
33 1190
34 1267
35 1347
36 1427
37 1510
38 1597
39 1684
40 1777
41 1870
42 1966
43 2065
44 2166
45 2271
46 2378
47 2486
48 2600

List of values

[0, 2, 7, 12, 19, 30, 42, 57, 75, 93, 114, 137, 162, 191, 222, 255, 292, 330, 372, 414, 457, 504, 553, 605, 660, 716, 777, 839, 903, 972, 1041, 1114, 1190, 1267, 1347, 1427, 1510, 1597, 1684, 1777, 1870, 1966, 2065, 2166, 2271, 2378, 2486, 2600]