A109322 - cp's OEIS frontend

A109322 a(n) is the minimum positive integer j such that [j, j+n-1] does not contain any values of sigma(k) (i.e., sum of all positive divisors of k).

n	a(n)
1	2
2	9
3	9
4	49
5	49
6	423
7	423
8	423
9	423
10	1333
11	1333
12	4425
13	4425
14	4425
15	4425
16	8763
17	8763
18	14089
19	14089
20	22825
21	22825
22	22825
23	22825
24	40291
25	40291
26	40291
27	40291
28	40291
29	40291
30	178705
31	178705
32	661285
33	661285
34	661285
35	661285
36	4543141
37	4543141
38	4543141
39	4543141
40	4543141
41	4543141
42	4543141
43	4543141
44	4543141
45	4543141
46	4543141
47	4543141

[2, 9, 9, 49, 49, 423, 423, 423, 423, 1333, 1333, 4425, 4425, 4425, 4425, 8763, 8763, 14089, 14089, 22825, 22825, 22825, 22825, 40291, 40291, 40291, 40291, 40291, 40291, 178705, 178705, 661285, 661285, 661285, 661285, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141, 4543141]

cp's OEIS Frontend

A109322 a(n) is the minimum positive integer j such that [j, j+n-1] does not contain any values of sigma(k) (i.e., sum of all positive divisors of k).

Table of values

List of values