A271639 - cp's OEIS frontend

A271639 Orphans: integers without ancestors, in the sense explained below.

n	a(n)
1	648
2	649
3	659
4	737
5	738
6	739
7	747
8	748
9	749
10	758
11	759
12	769
13	828
14	829
15	837
16	838
17	839
18	846
19	847
20	848
21	849
22	857
23	858
24	859
25	868
26	869
27	879
28	919
29	928
30	929
31	937
32	938
33	939
34	946
35	947
36	948
37	949
38	956
39	957
40	958
41	959
42	967
43	968
44	969
45	978
46	979
47	989
48	1648
49	1649
50	1659
51	1737
52	1738

[648, 649, 659, 737, 738, 739, 747, 748, 749, 758, 759, 769, 828, 829, 837, 838, 839, 846, 847, 848, 849, 857, 858, 859, 868, 869, 879, 919, 928, 929, 937, 938, 939, 946, 947, 948, 949, 956, 957, 958, 959, 967, 968, 969, 978, 979, 989, 1648, 1649, 1659, 1737, 1738]

cp's OEIS Frontend

A271639 Orphans: integers without ancestors, in the sense explained below.

Table of values

List of values