A059941 - cp's OEIS frontend

A059941 Take the n-th number which is just a sequence of 1's and 2's (A007931): if the first k digits in order are the same as the last k digits in order then put 1 in the k-th from right digit of a(n), otherwise put a zero.

n	a(n)
1	1
2	1
3	11
4	10
5	10
6	11
7	111
8	100
9	101
10	100
11	100
12	101
13	100
14	111
15	1111
16	1000
17	1001
18	1000
19	1001
20	1010
21	1001
22	1000
23	1000
24	1001
25	1010
26	1001
27	1000
28	1001
29	1000
30	1111
31	11111
32	10000
33	10001
34	10000
35	10011
36	10000
37	10001
38	10000
39	10001
40	10010
41	10101
42	10000

[1, 1, 11, 10, 10, 11, 111, 100, 101, 100, 100, 101, 100, 111, 1111, 1000, 1001, 1000, 1001, 1010, 1001, 1000, 1000, 1001, 1010, 1001, 1000, 1001, 1000, 1111, 11111, 10000, 10001, 10000, 10011, 10000, 10001, 10000, 10001, 10010, 10101, 10000]

cp's OEIS Frontend

A059941 Take the n-th number which is just a sequence of 1's and 2's (A007931): if the first k digits in order are the same as the last k digits in order then put 1 in the k-th from right digit of a(n), otherwise put a zero.

Table of values

List of values