A302717 - cp's OEIS frontend

A302717 Start with a(0) = 0, then append the terms in [x, 2x+1, x(x+1)] which do not occur earlier, for x = 1, 2, ...

n	a(n)
0	0
1	1
2	3
3	2
4	5
5	6
6	7
7	12
8	4
9	9
10	20
11	11
12	30
13	13
14	42
15	15
16	56
17	8
18	17
19	72
20	19
21	90
22	10
23	21
24	110
25	23
26	132
27	25
28	156
29	27
30	182
31	14
32	29
33	210
34	31
35	240
36	16
37	33
38	272
39	35
40	306
41	18
42	37
43	342
44	39
45	380
46	41
47	420
48	43
49	462
50	22
51	45
52	506
53	47
54	552
55	24
56	49
57	600
58	51
59	650
60	26
61	53
62	702
63	55
64	756
65	28
66	57
67	812
68	59
69	870
70	61
71	930
72	63
73	992
74	32
75	65
76	1056
77	67
78	1122
79	34
80	69
81	1190

[0, 1, 3, 2, 5, 6, 7, 12, 4, 9, 20, 11, 30, 13, 42, 15, 56, 8, 17, 72, 19, 90, 10, 21, 110, 23, 132, 25, 156, 27, 182, 14, 29, 210, 31, 240, 16, 33, 272, 35, 306, 18, 37, 342, 39, 380, 41, 420, 43, 462, 22, 45, 506, 47, 552, 24, 49, 600, 51, 650, 26, 53, 702, 55, 756, 28, 57, 812, 59, 870, 61, 930, 63, 992, 32, 65, 1056, 67, 1122, 34, 69, 1190]

cp's OEIS Frontend

A302717 Start with a(0) = 0, then append the terms in [x, 2x+1, x(x+1)] which do not occur earlier, for x = 1, 2, ...

Table of values

List of values

cp's OEIS Frontend

A302717 Start with a(0) = 0, then append the terms in [x, 2*x+1, x*(x+1)] which do not occur earlier, for x = 1, 2, ...

Table of values

List of values

A302717 Start with a(0) = 0, then append the terms in [x, 2x+1, x(x+1)] which do not occur earlier, for x = 1, 2, ...