A025710 - cp's OEIS frontend

A025710 Index of 5^n within sequence of numbers of form 5^i*9^j.

n	a(n)
1	1
2	2
3	4
4	7
5	10
6	14
7	19
8	25
9	31
10	38
11	46
12	55
13	64
14	74
15	85
16	96
17	108
18	121
19	135
20	149
21	164
22	180
23	197
24	214
25	232
26	251
27	271
28	291
29	312
30	334
31	356
32	379
33	403
34	428
35	453
36	479
37	506
38	534
39	562
40	591
41	621
42	652
43	683
44	715
45	748
46	781
47	815
48	850
49	886
50	922
51	959
52	997
53	1036
54	1075
55	1115
56	1156
57	1198

[1, 2, 4, 7, 10, 14, 19, 25, 31, 38, 46, 55, 64, 74, 85, 96, 108, 121, 135, 149, 164, 180, 197, 214, 232, 251, 271, 291, 312, 334, 356, 379, 403, 428, 453, 479, 506, 534, 562, 591, 621, 652, 683, 715, 748, 781, 815, 850, 886, 922, 959, 997, 1036, 1075, 1115, 1156, 1198]

cp's OEIS Frontend

A025710 Index of 5^n within sequence of numbers of form 5^i*9^j.

Table of values

List of values