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.

A156072 T(n,k) = 1 + a(n) - a(k) - a(n - k), where a(n) = A078012(n+2), triangle read by rows (n >= 0, 0 <= k <= n).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 0
5 1
6 1
7 0
8 0
9 1
10 1
11 1
12 1
13 1
14 1
15 1
16 1
17 2
18 2
19 1
20 1
21 1
22 1
23 2
24 3
25 2
26 1
27 1
28 1
29 2
30 3
31 4
32 4
33 3
34 2
35 1
36 1
37 3
38 5
39 6
40 6
41 6
42 5
43 3
44 1
45 1
46 4
47 7
48 9
49 9
50 9
51 9
52 7
53 4
54 1
55 1
56 6
57 10
58 13
59 14
60 14
61 14
62 13
63 10
64 6
65 1
66 1
67 9
68 15
69 19
70 21
71 22
72 22
73 21
74 19
75 15
76 9
77 1
78 1
79 13
80 22
81 28
82 31
83 33
84 34
85 33
86 31
87 28
88 22
89 13
90 1

List of values

[1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 3, 2, 1, 1, 1, 2, 3, 4, 4, 3, 2, 1, 1, 3, 5, 6, 6, 6, 5, 3, 1, 1, 4, 7, 9, 9, 9, 9, 7, 4, 1, 1, 6, 10, 13, 14, 14, 14, 13, 10, 6, 1, 1, 9, 15, 19, 21, 22, 22, 21, 19, 15, 9, 1, 1, 13, 22, 28, 31, 33, 34, 33, 31, 28, 22, 13, 1]