A276379 - cp's OEIS frontend

A276379 Write a "1" for each distinct prime divisor p of n in the (pi(p) - 1)-th place, ignoring multiplicity.

n	a(n)
1	0
2	1
3	10
4	1
5	100
6	11
7	1000
8	1
9	10
10	101
11	10000
12	11
13	100000
14	1001
15	110
16	1
17	1000000
18	11
19	10000000
20	101
21	1010
22	10001
23	100000000
24	11
25	100
26	100001
27	10
28	1001
29	1000000000
30	111
31	10000000000
32	1
33	10010
34	1000001
35	1100
36	11
37	100000000000
38	10000001
39	100010
40	101
41	1000000000000
42	1011
43	10000000000000
44	10001
45	110

[0, 1, 10, 1, 100, 11, 1000, 1, 10, 101, 10000, 11, 100000, 1001, 110, 1, 1000000, 11, 10000000, 101, 1010, 10001, 100000000, 11, 100, 100001, 10, 1001, 1000000000, 111, 10000000000, 1, 10010, 1000001, 1100, 11, 100000000000, 10000001, 100010, 101, 1000000000000, 1011, 10000000000000, 10001, 110]

cp's OEIS Frontend

A276379 Write a "1" for each distinct prime divisor p of n in the (pi(p) - 1)-th place, ignoring multiplicity.

Table of values

List of values