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.

A120138 a(n) = 10 + floor(Sum_{j=1..n-1} a(j) / 2).

Table of values

n a(n)
1 10
2 15
3 22
4 33
5 50
6 75
7 112
8 168
9 252
10 378
11 567
12 851
13 1276
14 1914
15 2871
16 4307
17 6460
18 9690
19 14535
20 21803
21 32704
22 49056
23 73584
24 110376
25 165564
26 248346
27 372519
28 558779
29 838168
30 1257252
31 1885878
32 2828817
33 4243226
34 6364839
35 9547258
36 14320887

List of values

[10, 15, 22, 33, 50, 75, 112, 168, 252, 378, 567, 851, 1276, 1914, 2871, 4307, 6460, 9690, 14535, 21803, 32704, 49056, 73584, 110376, 165564, 248346, 372519, 558779, 838168, 1257252, 1885878, 2828817, 4243226, 6364839, 9547258, 14320887]