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.

A082094 A 2nd-order recursion: a(1)=a(2)=1; a(n) = prime(a(n-1)) + primepi(a(n-2)) = A000040(a(n-1)) + A000720(a(n-2)).

Table of values

n a(n)
1 1
2 1
3 2
4 3
5 6
6 15
7 50
8 235
9 1498
10 12592
11 135431
12 1806803
13 29135476
14 555971158
15 12336554787
16 313733168860
17 9034347750986
18 291579097035392
19 10455240487002922
20 413371595329570610

List of values

[1, 1, 2, 3, 6, 15, 50, 235, 1498, 12592, 135431, 1806803, 29135476, 555971158, 12336554787, 313733168860, 9034347750986, 291579097035392, 10455240487002922, 413371595329570610]