A221644 - cp's OEIS frontend

A221644 Let abcd... be the decimal expansion of k. Sequence lists numbers k such that 1/a + 2/b + 3/c + 4/d + ... is an integer.

n	a(n)
1	1
2	11
3	12
4	24
5	33
6	111
7	113
8	121
9	123
10	139
11	142
12	146
13	155
14	184
15	212
16	216
17	222
18	226
19	241
20	243
21	331
22	333
23	369
24	414
25	424
26	482
27	486
28	649
29	662
30	666
31	848
32	1111
33	1112
34	1114
35	1128
36	1131
37	1132
38	1134
39	1168
40	1177
41	1196
42	1211
43	1212
44	1214
45	1228
46	1231
47	1232
48	1234
49	1268

[1, 11, 12, 24, 33, 111, 113, 121, 123, 139, 142, 146, 155, 184, 212, 216, 222, 226, 241, 243, 331, 333, 369, 414, 424, 482, 486, 649, 662, 666, 848, 1111, 1112, 1114, 1128, 1131, 1132, 1134, 1168, 1177, 1196, 1211, 1212, 1214, 1228, 1231, 1232, 1234, 1268]

cp's OEIS Frontend

A221644 Let abcd... be the decimal expansion of k. Sequence lists numbers k such that 1/a + 2/b + 3/c + 4/d + ... is an integer.

Table of values

List of values