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.

A265903 Square array read by descending antidiagonals: A(1,k) = A188163(k), and for n > 1, A(n,k) = A087686(1+A(n-1,k)).

Table of values

n a(n)
1 1
2 3
3 2
4 5
5 7
6 4
7 6
8 12
9 15
10 8
11 9
12 14
13 27
14 31
15 16
16 10
17 21
18 30
19 58
20 63
21 32
22 11
23 24
24 48
25 62
26 121
27 127
28 64
29 13
30 26
31 54
32 106
33 126
34 248
35 255
36 128
37 17
38 29
39 57
40 116
41 227
42 254
43 503
44 511
45 256
46 18
47 38
48 61
49 120
50 242
51 475
52 510
53 1014
54 1023
55 512
56 19
57 42
58 86
59 125
60 247
61 496
62 978
63 1022
64 2037
65 2047
66 1024
67 20
68 45
69 96
70 192
71 253
72 502
73 1006
74 1992
75 2046
76 4084
77 4095
78 2048

List of values

[1, 3, 2, 5, 7, 4, 6, 12, 15, 8, 9, 14, 27, 31, 16, 10, 21, 30, 58, 63, 32, 11, 24, 48, 62, 121, 127, 64, 13, 26, 54, 106, 126, 248, 255, 128, 17, 29, 57, 116, 227, 254, 503, 511, 256, 18, 38, 61, 120, 242, 475, 510, 1014, 1023, 512, 19, 42, 86, 125, 247, 496, 978, 1022, 2037, 2047, 1024, 20, 45, 96, 192, 253, 502, 1006, 1992, 2046, 4084, 4095, 2048]