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.

A275953 First differences of A265906; second differences of A265905.

Table of values

n a(n)
1 6
2 30
3 204
4 1446
5 11550
6 108204
7 1091526
8 11998830
9 146864484
10 1920044166
11 26872081230
12 407766664284
13 6548790510726
14 111305007240510
15 2018907373622004
16 38462931870864486
17 769155464685741870
18 16240360254478668204
19 358012008058965575046
20 8233510983226617823230
21 198405453050668260272364
22 4967948949777295176374646
23 129158062469199137001844830

List of values

[6, 30, 204, 1446, 11550, 108204, 1091526, 11998830, 146864484, 1920044166, 26872081230, 407766664284, 6548790510726, 111305007240510, 2018907373622004, 38462931870864486, 769155464685741870, 16240360254478668204, 358012008058965575046, 8233510983226617823230, 198405453050668260272364, 4967948949777295176374646, 129158062469199137001844830]