A098685 - cp's OEIS frontend

A098685 Numbers n such that pi(n) = sigma(d_1)sigma(d_2)...*sigma(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.

n	a(n)
1	15
2	155
3	252
4	916
5	1189
6	12654
7	55293
8	177554
9	418634
10	753248
11	885193
12	18252678
13	18252687
14	18469156
15	18469165
16	19882616
17	19882623
18	41867246
19	73526936
20	73526957
21	233843449
22	244895519
23	2345784285
24	2399877831
25	4273447776
26	29891923496
27	42649454852
28	728781494646

[15, 155, 252, 916, 1189, 12654, 55293, 177554, 418634, 753248, 885193, 18252678, 18252687, 18469156, 18469165, 19882616, 19882623, 41867246, 73526936, 73526957, 233843449, 244895519, 2345784285, 2399877831, 4273447776, 29891923496, 42649454852, 728781494646]

cp's OEIS Frontend

A098685 Numbers n such that pi(n) = sigma(d_1)sigma(d_2)...*sigma(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.

Table of values

List of values

cp's OEIS Frontend

A098685 Numbers n such that pi(n) = sigma(d_1)*sigma(d_2)*...*sigma(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.

Table of values

List of values

A098685 Numbers n such that pi(n) = sigma(d_1)sigma(d_2)...*sigma(d_k) where d_1 d_2 ... d_k is the decimal expansion of n.