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.

A101593 a(n) is the number of m <= 2^n which are in A075190, i.e., such that m^2 is exactly at the center between two consecutive primes, or in other words A056929(m) = 0.

Table of values

n a(n)
1 1
2 2
3 3
4 6
5 9
6 14
7 19
8 34
9 62
10 109
11 202
12 336
13 587
14 1100
15 2003
16 3630
17 6784
18 12607
19 23647
20 44206
21 83510
22 157851
23 299810
24 571264
25 1090986
26 2088445
27 4004347
28 7687694
29 14788984
30 28496850
31 54955214
32 106159961

List of values

[1, 2, 3, 6, 9, 14, 19, 34, 62, 109, 202, 336, 587, 1100, 2003, 3630, 6784, 12607, 23647, 44206, 83510, 157851, 299810, 571264, 1090986, 2088445, 4004347, 7687694, 14788984, 28496850, 54955214, 106159961]