A371808 - cp's OEIS frontend

A371808 Exponents k > 0 of powers of 2 such that the decimal expansion of 2^k contains more than one 666 substring (overlapping substrings are counted as distinct).

n	a(n)
1	220
2	222
3	243
4	529
5	624
6	648
7	662
8	702
9	714
10	838
11	840
12	842
13	844
14	846
15	850
16	857
17	859
18	867
19	869
20	871
21	924
22	925
23	927
24	929
25	931
26	975
27	979
28	981
29	983
30	1056
31	1058
32	1062
33	1088
34	1133
35	1135
36	1160
37	1162
38	1219
39	1230
40	1241
41	1259
42	1310
43	1341
44	1343
45	1349
46	1384
47	1394
48	1411
49	1420

[220, 222, 243, 529, 624, 648, 662, 702, 714, 838, 840, 842, 844, 846, 850, 857, 859, 867, 869, 871, 924, 925, 927, 929, 931, 975, 979, 981, 983, 1056, 1058, 1062, 1088, 1133, 1135, 1160, 1162, 1219, 1230, 1241, 1259, 1310, 1341, 1343, 1349, 1384, 1394, 1411, 1420]

cp's OEIS Frontend

A371808 Exponents k > 0 of powers of 2 such that the decimal expansion of 2^k contains more than one 666 substring (overlapping substrings are counted as distinct).

Table of values

List of values