A195349 - cp's OEIS frontend

A195349 Numbers n such that Sum_{k=1..n} d(k) divides Product_{k=1..n} d(k), where d(k) is the number of divisors of k.

n	a(n)
1	1
2	7
3	19
4	41
5	57
6	64
7	68
8	133
9	145
10	149
11	164
12	235
13	267
14	291
15	317
16	336
17	358
18	419
19	433
20	503
21	528
22	566
23	599
24	612
25	659
26	726
27	801
28	927
29	1017
30	1035
31	1077
32	1118
33	1190
34	1206
35	1213
36	1281
37	1297
38	1309
39	1320
40	1323
41	1367
42	1446
43	1473
44	1485
45	1516
46	1595
47	1611
48	1634
49	1941

[1, 7, 19, 41, 57, 64, 68, 133, 145, 149, 164, 235, 267, 291, 317, 336, 358, 419, 433, 503, 528, 566, 599, 612, 659, 726, 801, 927, 1017, 1035, 1077, 1118, 1190, 1206, 1213, 1281, 1297, 1309, 1320, 1323, 1367, 1446, 1473, 1485, 1516, 1595, 1611, 1634, 1941]

cp's OEIS Frontend

A195349 Numbers n such that Sum_{k=1..n} d(k) divides Product_{k=1..n} d(k), where d(k) is the number of divisors of k.

Table of values

List of values