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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.

A339556 Number of subsets of the first n primes whose elements have a prime root-mean-square.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 11
8 16
9 19
10 30
11 41
12 54
13 69
14 106
15 177
16 272
17 397
18 686
19 1299
20 2416
21 4225
22 7196
23 11701
24 20352
25 36305
26 70134
27 132721
28 248722
29 473391
30 894318
31 1674923
32 3054022
33 5452067
34 9626552
35 16696543
36 29086462
37 51830095
38 96887612
39 192393735
40 397875694

List of values

[1, 2, 3, 4, 5, 6, 11, 16, 19, 30, 41, 54, 69, 106, 177, 272, 397, 686, 1299, 2416, 4225, 7196, 11701, 20352, 36305, 70134, 132721, 248722, 473391, 894318, 1674923, 3054022, 5452067, 9626552, 16696543, 29086462, 51830095, 96887612, 192393735, 397875694]

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

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