A043167 - cp's OEIS frontend

A043167 Numbers k such that 2 and 5 occur juxtaposed in the base-8 representation of k but not of k-1.

n	a(n)
1	21
2	42
3	85
4	106
5	149
6	168
7	213
8	234
9	277
10	298
11	336
12	362
13	405
14	426
15	469
16	490
17	533
18	554
19	597
20	618
21	661
22	680
23	725
24	746
25	789
26	810
27	848
28	874
29	917
30	938
31	981
32	1002
33	1045
34	1066
35	1109
36	1130
37	1173
38	1192
39	1237
40	1258
41	1301
42	1322
43	1344

[21, 42, 85, 106, 149, 168, 213, 234, 277, 298, 336, 362, 405, 426, 469, 490, 533, 554, 597, 618, 661, 680, 725, 746, 789, 810, 848, 874, 917, 938, 981, 1002, 1045, 1066, 1109, 1130, 1173, 1192, 1237, 1258, 1301, 1322, 1344]

cp's OEIS Frontend

A043167 Numbers k such that 2 and 5 occur juxtaposed in the base-8 representation of k but not of k-1.

Table of values

List of values