A109837 - cp's OEIS frontend

A109837 Smallest prime factor of the reverse concatenation of the first n odd numbers.

n	a(n)
2	31
3	3
4	17
5	7
6	3
7	1579
8	17
9	3
10	2677
11	131
12	3
13	54049423
14	47
15	3
16	487
17	25541
18	3
19	7
20	211
21	3
22	31
23	622639
24	3
25	498508631
26	7
27	3
28	1259
29	193
30	3
31	7669
32	16229
33	3
34	13
35	887377
36	3
37	737169676563615957555351494745434139373533312927252321191715131197531

[31, 3, 17, 7, 3, 1579, 17, 3, 2677, 131, 3, 54049423, 47, 3, 487, 25541, 3, 7, 211, 3, 31, 622639, 3, 498508631, 7, 3, 1259, 193, 3, 7669, 16229, 3, 13, 887377, 3, 737169676563615957555351494745434139373533312927252321191715131197531]

cp's OEIS Frontend

A109837 Smallest prime factor of the reverse concatenation of the first n odd numbers.

Table of values

List of values