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.

A245735 G.f. A(x) satisfies 0 = A(0) and 0 = f(x, A(x)) where f(u, v) = (u - v) * (1 + u*v) - u*v * (1 - u*v).

Table of values

n a(n)
0 0
1 1
2 -1
3 1
4 1
5 -5
6 9
7 -3
8 -29
9 89
10 -107
11 -121
12 833
13 -1703
14 631
15 6705
16 -21943
17 27587
18 34937
19 -242427
20 507739
21 -172615
22 -2201619
23 7253775
24 -9083263
25 -12931023
26 86757487
27 -181330015
28 52436881
29 843605643
30 -2751023447
31 3373429837
32 5393254483
33 -34585122919

List of values

[0, 1, -1, 1, 1, -5, 9, -3, -29, 89, -107, -121, 833, -1703, 631, 6705, -21943, 27587, 34937, -242427, 507739, -172615, -2201619, 7253775, -9083263, -12931023, 86757487, -181330015, 52436881, 843605643, -2751023447, 3373429837, 5393254483, -34585122919]