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.

A301586 G.f.: Sum_{n>=0} ((1+x)^(4*n) - 1)^n.

Table of values

n a(n)
0 1
1 4
2 70
3 2180
4 95729
5 5422192
6 375951144
7 30833206304
8 2919367902648
9 313380517364324
10 37606931999739230
11 4988933437333555060
12 724960700435104219679
13 114519163835687116024256
14 19538926882901715534673728
15 3580844611314789257667535968
16 701546780854024941112271649610
17 146318317830136401429653726419700
18 32367591848747955557013839920695374
19 7569528177000020896435962191564396740

List of values

[1, 4, 70, 2180, 95729, 5422192, 375951144, 30833206304, 2919367902648, 313380517364324, 37606931999739230, 4988933437333555060, 724960700435104219679, 114519163835687116024256, 19538926882901715534673728, 3580844611314789257667535968, 701546780854024941112271649610, 146318317830136401429653726419700, 32367591848747955557013839920695374, 7569528177000020896435962191564396740]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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