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.

A046429 Numbers requiring 9 steps to reach a prime under the prime factor concatenation procedure.

Table of values

n a(n)
1 40
2 44
3 81
4 224
5 265
6 395
7 422
8 462
9 640
10 698
11 818
12 972
13 1010
14 1032
15 1070
16 1089
17 1174
18 1206
19 1280
20 1336
21 1446
22 1518
23 1520
24 1528
25 1581
26 1662
27 1728
28 1814
29 1816
30 1849
31 1852
32 1853
33 1856
34 1892
35 1927
36 1932
37 1960
38 2032
39 2060
40 2061
41 2090
42 2098
43 2202
44 2212
45 2249

List of values

[40, 44, 81, 224, 265, 395, 422, 462, 640, 698, 818, 972, 1010, 1032, 1070, 1089, 1174, 1206, 1280, 1336, 1446, 1518, 1520, 1528, 1581, 1662, 1728, 1814, 1816, 1849, 1852, 1853, 1856, 1892, 1927, 1932, 1960, 2032, 2060, 2061, 2090, 2098, 2202, 2212, 2249]

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

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