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.

A073380 Third convolution of A000129(n+1) (generalized (2,1)-Fibonacci, called Pell numbers), n>=0, with itself.

Table of values

n a(n)
0 1
1 8
2 44
3 200
4 810
5 3032
6 10716
7 36248
8 118435
9 376240
10 1167720
11 3553840
12 10636180
13 31375440
14 91392040
15 263266512
16 750922021
17 2123059448
18 5955034740
19 16584106040
20 45884989054
21 126202397032

List of values

[1, 8, 44, 200, 810, 3032, 10716, 36248, 118435, 376240, 1167720, 3553840, 10636180, 31375440, 91392040, 263266512, 750922021, 2123059448, 5955034740, 16584106040, 45884989054, 126202397032]