A047699 - cp's OEIS frontend

A047699 a(0) = 0; for n >= 0, a(n+1) = a(n) + x where x is the smallest nonnegative number that is not equal to a(i) +- a(k) for any 0 <= i <= n, 0 <= k <= n.

n	a(n)
0	0
1	1
2	4
3	10
4	17
5	29
6	44
7	66
8	89
9	113
10	139
11	170
12	202
13	237
14	273
15	311
16	352
17	394
18	445
19	497
20	550
21	605
22	664
23	728
24	796
25	871
26	948
27	1026
28	1106
29	1188
30	1274
31	1361
32	1452
33	1544
34	1638
35	1735
36	1835
37	1936
38	2038
39	2145
40	2256
41	2372
42	2491
43	2611
44	2736
45	2863
46	2991

[0, 1, 4, 10, 17, 29, 44, 66, 89, 113, 139, 170, 202, 237, 273, 311, 352, 394, 445, 497, 550, 605, 664, 728, 796, 871, 948, 1026, 1106, 1188, 1274, 1361, 1452, 1544, 1638, 1735, 1835, 1936, 2038, 2145, 2256, 2372, 2491, 2611, 2736, 2863, 2991]

cp's OEIS Frontend

A047699 a(0) = 0; for n >= 0, a(n+1) = a(n) + x where x is the smallest nonnegative number that is not equal to a(i) +- a(k) for any 0 <= i <= n, 0 <= k <= n.

Table of values

List of values