A036241 - cp's OEIS frontend

A036241 a(1)=1, a(2)=2, a(3)=3; for n >= 3, a(n) is smallest number such that all a(i) for 1 <= i <= n are distinct, all a(i)+a(j) for 1 <= i < j <= n are distinct and all a(i)+a(j)+a(k) for 1 <= i < j < k <= n are distinct.

n	a(n)
1	1
2	2
3	3
4	5
5	8
6	14
7	25
8	45
9	82
10	140
11	235
12	388
13	559
14	839
15	1286
16	1582
17	2221
18	3144
19	4071
20	5795
21	6872
22	9204
23	11524
24	13796
25	17686
26	21489
27	26019
28	31080
29	37742
30	45067
31	53144
32	58365
33	67917
34	78484
35	91767
36	106513
37	118600
38	133486
39	147633
40	166034
41	174717

[1, 2, 3, 5, 8, 14, 25, 45, 82, 140, 235, 388, 559, 839, 1286, 1582, 2221, 3144, 4071, 5795, 6872, 9204, 11524, 13796, 17686, 21489, 26019, 31080, 37742, 45067, 53144, 58365, 67917, 78484, 91767, 106513, 118600, 133486, 147633, 166034, 174717]

cp's OEIS Frontend

A036241 a(1)=1, a(2)=2, a(3)=3; for n >= 3, a(n) is smallest number such that all a(i) for 1 <= i <= n are distinct, all a(i)+a(j) for 1 <= i < j <= n are distinct and all a(i)+a(j)+a(k) for 1 <= i < j < k <= n are distinct.

Table of values

List of values