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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.

A083856 Square array T(n,k) of generalized Fibonacci numbers, read by antidiagonals upwards (n, k >= 0).

Table of values

n a(n)
0 0
1 0
2 1
3 0
4 1
5 1
6 0
7 1
8 1
9 1
10 0
11 1
12 1
13 2
14 1
15 0
16 1
17 1
18 3
19 3
20 1
21 0
22 1
23 1
24 4
25 5
26 5
27 1
28 0
29 1
30 1
31 5
32 7
33 11
34 8
35 1
36 0
37 1
38 1
39 6
40 9
41 19
42 21
43 13
44 1
45 0
46 1
47 1
48 7
49 11
50 29
51 40
52 43
53 21
54 1
55 0
56 1
57 1
58 8
59 13
60 41
61 65
62 97
63 85
64 34
65 1
66 0
67 1
68 1
69 9
70 15
71 55
72 96
73 181
74 217
75 171
76 55
77 1

List of values

[0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 2, 1, 0, 1, 1, 3, 3, 1, 0, 1, 1, 4, 5, 5, 1, 0, 1, 1, 5, 7, 11, 8, 1, 0, 1, 1, 6, 9, 19, 21, 13, 1, 0, 1, 1, 7, 11, 29, 40, 43, 21, 1, 0, 1, 1, 8, 13, 41, 65, 97, 85, 34, 1, 0, 1, 1, 9, 15, 55, 96, 181, 217, 171, 55, 1]