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.

A319834 a(n) = coefficient of x^n*y^(n+1)/n! in log( Sum_{n>=0} (n^2 + n*y + y^2)^n * x^n/n! ).

Table of values

n a(n)
1 1
2 2
3 15
4 184
5 3325
6 79056
7 2345539
8 83505920
9 3472829721
10 165321395200
11 8868765212791
12 529513463098368
13 34831327847918485
14 2503184803456354304
15 195151614670701520875
16 16405316791445973139456
17 1479333355684885588136881
18 142443466217414911148359680
19 14587416733382035646737882591
20 1583199811285962289889116160000

List of values

[1, 2, 15, 184, 3325, 79056, 2345539, 83505920, 3472829721, 165321395200, 8868765212791, 529513463098368, 34831327847918485, 2503184803456354304, 195151614670701520875, 16405316791445973139456, 1479333355684885588136881, 142443466217414911148359680, 14587416733382035646737882591, 1583199811285962289889116160000]