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.

A170890 Toothpick sequence similar to A160406, but always staying outside the wedge, starting with a horizontal half-toothpick which protrudes from the vertex of the wedge.

Table of values

n a(n)
0 0
1 1
2 2
3 4
4 7
5 10
6 14
7 21
8 29
9 37
10 43
11 53
12 61
13 71
14 83
15 103
16 123
17 139
18 151
19 165
20 173
21 183
22 195
23 215
24 235
25 253
26 271
27 295
28 317
29 345
30 385
31 441
32 493
33 531
34 559
35 581
36 589
37 599
38 611
39 631
40 651
41 669
42 687
43 711
44 733
45 761
46 801
47 857
48 909
49 949
50 983
51 1015
52 1037
53 1065
54 1105
55 1161

List of values

[0, 1, 2, 4, 7, 10, 14, 21, 29, 37, 43, 53, 61, 71, 83, 103, 123, 139, 151, 165, 173, 183, 195, 215, 235, 253, 271, 295, 317, 345, 385, 441, 493, 531, 559, 581, 589, 599, 611, 631, 651, 669, 687, 711, 733, 761, 801, 857, 909, 949, 983, 1015, 1037, 1065, 1105, 1161]