A239639 - cp's OEIS frontend

A239639 Lengths of runs of the initial digits of semiprimes in decimal representation, cf. A239634.

n	a(n)
1	1
2	1
3	1
4	3
5	4
6	5
7	2
8	4
9	3
10	2
11	4
12	4
13	28
14	32
15	32
16	27
17	33
18	26
19	30
20	28
21	29
22	278
23	264
24	264
25	260
26	257
27	245
28	262
29	252
30	244
31	2456
32	2380
33	2329
34	2320
35	2254
36	2325
37	2231
38	2244
39	2214
40	21852
41	21400
42	20923
43	20773
44	20548
45	20528
46	20258
47	20156
48	20219
49	197249
50	193162
51	190540
52	188288
53	187308
54	185657
55	184788
56	183856
57	183441

[1, 1, 1, 3, 4, 5, 2, 4, 3, 2, 4, 4, 28, 32, 32, 27, 33, 26, 30, 28, 29, 278, 264, 264, 260, 257, 245, 262, 252, 244, 2456, 2380, 2329, 2320, 2254, 2325, 2231, 2244, 2214, 21852, 21400, 20923, 20773, 20548, 20528, 20258, 20156, 20219, 197249, 193162, 190540, 188288, 187308, 185657, 184788, 183856, 183441]

cp's OEIS Frontend

A239639 Lengths of runs of the initial digits of semiprimes in decimal representation, cf. A239634.

Table of values

List of values