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.

A138123 Antidiagonal sums of a triangle of coefficients of recurrences of the Fibonacci sequence.

Table of values

n a(n)
1 1
2 1
3 3
4 0
5 3
6 0
7 7
8 1
9 11
10 0
11 17
12 0
13 29
14 1
15 47
16 0
17 75
18 0
19 123
20 1
21 199
22 0
23 321
24 0
25 521
26 1
27 843
28 0
29 1363
30 0
31 2207
32 1
33 3571
34 0
35 5777
36 0
37 9349
38 1
39 15127
40 0
41 24475
42 0
43 39603
44 1
45 64079
46 0
47 103681
48 0
49 167761
50 1
51 271443
52 0
53 439203
54 0
55 710647
56 1
57 1149851
58 0
59 1860497
60 0

List of values

[1, 1, 3, 0, 3, 0, 7, 1, 11, 0, 17, 0, 29, 1, 47, 0, 75, 0, 123, 1, 199, 0, 321, 0, 521, 1, 843, 0, 1363, 0, 2207, 1, 3571, 0, 5777, 0, 9349, 1, 15127, 0, 24475, 0, 39603, 1, 64079, 0, 103681, 0, 167761, 1, 271443, 0, 439203, 0, 710647, 1, 1149851, 0, 1860497, 0]