A305707 - cp's OEIS frontend

A305707 Numbers n such that for every k = 1, 2, ..., A305706(n)-1, it is possible to insert plus signs into the decimal representation of n^k to make sum equal n.

n	a(n)
1	0
2	1
3	2
4	3
5	4
6	5
7	6
8	7
9	8
10	9
11	10
12	13
13	14
14	17
15	45
16	91
17	100
18	675
19	945
20	964
21	990
22	991
23	1000
24	1296
25	1702
26	2728
27	4879
28	5050
29	5149
30	5292
31	7777
32	8938
33	9325
34	9765
35	9901
36	9909
37	9918
38	9945
39	9955
40	9964
41	10000
42	10512
43	12222
44	12727
45	17271
46	41149
47	42643
48	48790
49	50050
50	59284
51	72612
52	75331
53	77778
54	81118
55	87571
56	93574
57	95121
58	99226
59	99630
60	99631
61	99703
62	99901
63	99909
64	99918
65	99945
66	99955
67	99964
68	99991
69	100000
70	104878
71	117343
72	329967
73	461539

[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 17, 45, 91, 100, 675, 945, 964, 990, 991, 1000, 1296, 1702, 2728, 4879, 5050, 5149, 5292, 7777, 8938, 9325, 9765, 9901, 9909, 9918, 9945, 9955, 9964, 10000, 10512, 12222, 12727, 17271, 41149, 42643, 48790, 50050, 59284, 72612, 75331, 77778, 81118, 87571, 93574, 95121, 99226, 99630, 99631, 99703, 99901, 99909, 99918, 99945, 99955, 99964, 99991, 100000, 104878, 117343, 329967, 461539]

cp's OEIS Frontend

A305707 Numbers n such that for every k = 1, 2, ..., A305706(n)-1, it is possible to insert plus signs into the decimal representation of n^k to make sum equal n.

Table of values

List of values