A145470 - cp's OEIS frontend

A145470 A positive integer k 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	12
2	30
3	42
4	45
5	56
6	66
7	112
8	220
9	261
10	282
11	294
12	297
13	308
14	342
15	364
16	390
17	416
18	477
19	492
20	513
21	516
22	532
23	536
24	555
25	567
26	572
27	580
28	620
29	621
30	632
31	651
32	700
33	705
34	768
35	777
36	786
37	795
38	812
39	832
40	836
41	860
42	880
43	884
44	891
45	897
46	906
47	957
48	975
49	976
50	981
51	992
52	1000
53	1005

[12, 30, 42, 45, 56, 66, 112, 220, 261, 282, 294, 297, 308, 342, 364, 390, 416, 477, 492, 513, 516, 532, 536, 555, 567, 572, 580, 620, 621, 632, 651, 700, 705, 768, 777, 786, 795, 812, 832, 836, 860, 880, 884, 891, 897, 906, 957, 975, 976, 981, 992, 1000, 1005]

cp's OEIS Frontend

A145470 A positive integer k 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