A375258 - cp's OEIS frontend

A375258 Array read by antidiagonals: T(k,n) is the least positive integer whose sum of base-2 digits is k and sum of base-3 digits is n, or -1 if there is none.

n	a(n)
1	1
2	2
3	3
4	-1
5	6
6	81
7	8
8	5
9	28
10	27
11	-1
12	20
13	7
14	30
15	2187
16	128
17	17
18	14
19	15
20	244
21	243
22	-1
23	68
24	25
25	46
26	31
27	246
28	-1
29	512
30	8193
31	26
32	23
33	94
34	63
35	6570
36	19683
37	-1
38	80
39	131
40	78
41	47
42	126
43	247
44	2430
45	59049
46	2048
47	1025
48	134
49	53
50	62
51	95
52	254
53	255
54	19926
55	531441
56	-1
57	2050
58	161
59	212
60	79
61	222
62	127
63	766
64	2431

[1, 2, 3, -1, 6, 81, 8, 5, 28, 27, -1, 20, 7, 30, 2187, 128, 17, 14, 15, 244, 243, -1, 68, 25, 46, 31, 246, -1, 512, 8193, 26, 23, 94, 63, 6570, 19683, -1, 80, 131, 78, 47, 126, 247, 2430, 59049, 2048, 1025, 134, 53, 62, 95, 254, 255, 19926, 531441, -1, 2050, 161, 212, 79, 222, 127, 766, 2431]

cp's OEIS Frontend

A375258 Array read by antidiagonals: T(k,n) is the least positive integer whose sum of base-2 digits is k and sum of base-3 digits is n, or -1 if there is none.

Table of values

List of values