A380564 - cp's OEIS frontend

A380564 Triangle read by rows q(b1,b2) with 1 with q(b1,b2) being the least integer k equal to or greater than b1 such that all the digits of k read in base b2 are the beginning digits of k read in base b1; or 0 iff b2 is perfect power, m^k (A001597), and b1 is m^j, 0

n	a(n)
1	9
2	0
3	265
4	5
5	117032
6	2123333591
7	7
8	44
9	291720
10	10757067
11	57
12	449
13	16879
14	18042
15	19032324921
16	0
17	332930
18	0
19	2180306
20	174631931663663360
21	51981761666123
22	9
23	0
24	93
25	839
26	407917265
27	50732175
28	197761284636128964
29	10
30	10
31	133302001
32	124343
33	155133423353

[9, 0, 265, 5, 117032, 2123333591, 7, 44, 291720, 10757067, 57, 449, 16879, 18042, 19032324921, 0, 332930, 0, 2180306, 174631931663663360, 51981761666123, 9, 0, 93, 839, 407917265, 50732175, 197761284636128964, 10, 10, 133302001, 124343, 155133423353]

cp's OEIS Frontend

A380564 Triangle read by rows q(b1,b2) with 1 with q(b1,b2) being the least integer k equal to or greater than b1 such that all the digits of k read in base b2 are the beginning digits of k read in base b1; or 0 iff b2 is perfect power, m^k (A001597), and b1 is m^j, 0

Table of values

List of values