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.

A210197 Triangle of coefficients of polynomials u(n,x) jointly generated with A210198; see the Formula section.

Table of values

n a(n)
1 1
2 3
3 7
4 1
5 15
6 5
7 31
8 17
9 1
10 63
11 49
12 7
13 127
14 129
15 31
16 1
17 255
18 321
19 111
20 9
21 511
22 769
23 351
24 49
25 1
26 1023
27 1793
28 1023
29 209
30 11
31 2047
32 4097
33 2815
34 769
35 71
36 1
37 4095
38 9217
39 7423
40 2561
41 351
42 13
43 8191
44 20481
45 18943
46 7937
47 1471
48 97
49 1
50 16383
51 45057
52 47103

List of values

[1, 3, 7, 1, 15, 5, 31, 17, 1, 63, 49, 7, 127, 129, 31, 1, 255, 321, 111, 9, 511, 769, 351, 49, 1, 1023, 1793, 1023, 209, 11, 2047, 4097, 2815, 769, 71, 1, 4095, 9217, 7423, 2561, 351, 13, 8191, 20481, 18943, 7937, 1471, 97, 1, 16383, 45057, 47103]