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.

A355654 For any number n with runs in binary expansion (r_w, ..., r_0), let p(n) be the polynomial of a single indeterminate x where the coefficient of x^e is r_e for e = 0..w and otherwise 0, and let q be the inverse of p; a(n) = q(p(n)^2).

Table of values

n a(n)
0 0
1 1
2 9
3 15
4 271
5 313
6 481
7 511
8 33279
9 34785
10 39993
11 40719
12 61455
13 61689
14 65409
15 65535
16 16842751
17 17039233
18 17809657
19 17821711
20 20455183
21 20479033
22 20842465
23 20939263
24 31457791
25 31465441
26 31584313
27 31588111
28 33488911
29 33489913
30 33553921
31 33554431
32 34393292799

List of values

[0, 1, 9, 15, 271, 313, 481, 511, 33279, 34785, 39993, 40719, 61455, 61689, 65409, 65535, 16842751, 17039233, 17809657, 17821711, 20455183, 20479033, 20842465, 20939263, 31457791, 31465441, 31584313, 31588111, 33488911, 33489913, 33553921, 33554431, 34393292799]