A175115 - cp's OEIS frontend

A175115 An integer k, k >=3, is included if d(k) = d(k-1)*d(k-2), where d(k) is the number of divisors of k.

n	a(n)
1	3
2	24
3	120
4	150
5	195
6	216
7	294
8	312
9	399
10	440
11	459
12	525
13	540
14	558
15	570
16	615
17	630
18	663
19	693
20	696
21	744
22	759
23	774
24	858
25	999
26	1032
27	1095
28	1125
29	1152
30	1176
31	1239
32	1350
33	1455
34	1470
35	1494
36	1608
37	1624
38	1659
39	1664
40	1710
41	1725
42	1734
43	1785
44	1860
45	1880
46	1896
47	1914

[3, 24, 120, 150, 195, 216, 294, 312, 399, 440, 459, 525, 540, 558, 570, 615, 630, 663, 693, 696, 744, 759, 774, 858, 999, 1032, 1095, 1125, 1152, 1176, 1239, 1350, 1455, 1470, 1494, 1608, 1624, 1659, 1664, 1710, 1725, 1734, 1785, 1860, 1880, 1896, 1914]

cp's OEIS Frontend

A175115 An integer k, k >=3, is included if d(k) = d(k-1)*d(k-2), where d(k) is the number of divisors of k.

Table of values

List of values