A096098 - cp's OEIS frontend

A096098 a(1) = 2, a(2) = 1; for n >= 3, a(n) = least number not included earlier that divides the concatenation of all previous terms.

n	a(n)
1	2
2	1
3	3
4	71
5	7
6	21
7	599
8	173
9	11
10	23
11	161
12	49
13	13
14	9
15	131
16	19
17	33
18	17
19	1489
20	331
21	3989
22	69
23	3097350956401900335673788279883089441874368101
24	349387
25	5651
26	443
27	29
28	51
29	479470832244949
30	661
31	1129
32	1873
33	181
34	1544577973887516219070997863
35	521

[2, 1, 3, 71, 7, 21, 599, 173, 11, 23, 161, 49, 13, 9, 131, 19, 33, 17, 1489, 331, 3989, 69, 3097350956401900335673788279883089441874368101, 349387, 5651, 443, 29, 51, 479470832244949, 661, 1129, 1873, 181, 1544577973887516219070997863, 521]

cp's OEIS Frontend

A096098 a(1) = 2, a(2) = 1; for n >= 3, a(n) = least number not included earlier that divides the concatenation of all previous terms.

Table of values

List of values