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.

A248594 Semiprimes whose next four consecutive integers have exactly three, four, five, and six prime factors, respectively (allowing multiplicity of factors).

Table of values

n a(n)
1 153221
2 196621
3 222422
4 230261
5 288437
6 307373
7 340421
8 400082
9 657302
10 660713
11 706073
12 723461
13 777773
14 838562
15 843521
16 954581
17 961621
18 988601
19 1009985
20 1031846
21 1034933
22 1190822
23 1215821
24 1246802
25 1384621
26 1409873
27 1612321
28 1723082
29 1737122
30 1886441

List of values

[153221, 196621, 222422, 230261, 288437, 307373, 340421, 400082, 657302, 660713, 706073, 723461, 777773, 838562, 843521, 954581, 961621, 988601, 1009985, 1031846, 1034933, 1190822, 1215821, 1246802, 1384621, 1409873, 1612321, 1723082, 1737122, 1886441]

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

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