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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.

A367075 a(n) is the least semiprime that is the first of n consecutive semiprimes s(1) ... s(n) such that s(i) - prime(i) are all equal.

Table of values

n a(n)
1 4
2 9
3 118
4 514
5 1202
6 9662
7 46418
8 198878
9 273386
10 717818
11 717818
12 270893786
13 1009201118
14 1009201118
15 68668578806
16 421210555538
17 421210555538
18 81550619289662
19 645040014922382
20 645040014922382
21 645040014922382

List of values

[4, 9, 118, 514, 1202, 9662, 46418, 198878, 273386, 717818, 717818, 270893786, 1009201118, 1009201118, 68668578806, 421210555538, 421210555538, 81550619289662, 645040014922382, 645040014922382, 645040014922382]

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

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