A255641 - cp's OEIS frontend

A255641 Smallest number requiring n 1's to build using +, * and -.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	10
8	11
9	17
10	22
11	29
12	41
13	58
14	67
15	101
16	131
17	173
18	262
19	346
20	461
21	617
22	787
23	1123
24	1571
25	2077
26	2767
27	4153
28	5443
29	7963
30	10733
31	13997
32	21101
33	27997
34	36643
35	49747
36	72103
37	99317
38	143239
39	179107
40	260213

[1, 2, 3, 4, 5, 7, 10, 11, 17, 22, 29, 41, 58, 67, 101, 131, 173, 262, 346, 461, 617, 787, 1123, 1571, 2077, 2767, 4153, 5443, 7963, 10733, 13997, 21101, 27997, 36643, 49747, 72103, 99317, 143239, 179107, 260213]

cp's OEIS Frontend

A255641 Smallest number requiring n 1's to build using +, * and -.

Table of values

List of values