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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.

A294952 Triangle read by rows: T(n,k) is the number of n-digit numbers having a k-digit greatest prime factor.

Table of values

n a(n)
1 9
2 36
3 54
4 95
5 470
6 335
7 197
8 2854
9 3547
10 2402
11 356
12 13370
13 31999
14 25577
15 18698
16 579
17 54250
18 236147
19 256465
20 199403
21 153156
22 882
23 196729
24 1486448
25 2386859
26 1999848
27 1633601
28 1295633
29 1272
30 653419
31 8615121
32 19298617
33 19999102
34 16384481
35 13828384
36 11219604

List of values

[9, 36, 54, 95, 470, 335, 197, 2854, 3547, 2402, 356, 13370, 31999, 25577, 18698, 579, 54250, 236147, 256465, 199403, 153156, 882, 196729, 1486448, 2386859, 1999848, 1633601, 1295633, 1272, 653419, 8615121, 19298617, 19999102, 16384481, 13828384, 11219604]

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

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