A026495 - cp's OEIS frontend

A026495 a(n) = least positive integer > a(n-1) and not a(i)^2 + a(j)^2 + a(k)^2 for 1<=i

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	15
15	16
16	17
17	18
18	19
19	20
20	22
21	23
22	24
23	25
24	27
25	28
26	31
27	32
28	33
29	34
30	36
31	37
32	39
33	40
34	43
35	44
36	47
37	48
38	51
39	52
40	55
41	57
42	58
43	60
44	63
45	64
46	67
47	68
48	71
49	72
50	73
51	76
52	79
53	80
54	82
55	85
56	87
57	88
58	92
59	95
60	96
61	97
62	99
63	100
64	102
65	103
66	108
67	111
68	112
69	119
70	123

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 22, 23, 24, 25, 27, 28, 31, 32, 33, 34, 36, 37, 39, 40, 43, 44, 47, 48, 51, 52, 55, 57, 58, 60, 63, 64, 67, 68, 71, 72, 73, 76, 79, 80, 82, 85, 87, 88, 92, 95, 96, 97, 99, 100, 102, 103, 108, 111, 112, 119, 123]

cp's OEIS Frontend

A026495 a(n) = least positive integer > a(n-1) and not a(i)^2 + a(j)^2 + a(k)^2 for 1<=i

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	15
15	16
16	17
17	18
18	19
19	20
20	22
21	23
22	24
23	25
24	27
25	28
26	31
27	32
28	33
29	34
30	36
31	37
32	39
33	40
34	43
35	44
36	47
37	48
38	51
39	52
40	55
41	57
42	58
43	60
44	63
45	64
46	67
47	68
48	71
49	72
50	73
51	76
52	79
53	80
54	82
55	85
56	87
57	88
58	92
59	95
60	96
61	97
62	99
63	100
64	102
65	103
66	108
67	111
68	112
69	119
70	123

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	15
15	16
16	17
17	18
18	19
19	20
20	22
21	23
22	24
23	25
24	27
25	28
26	31
27	32
28	33
29	34
30	36
31	37
32	39
33	40
34	43
35	44
36	47
37	48
38	51
39	52
40	55
41	57
42	58
43	60
44	63
45	64
46	67
47	68
48	71
49	72
50	73
51	76
52	79
53	80
54	82
55	85
56	87
57	88
58	92
59	95
60	96
61	97
62	99
63	100
64	102
65	103
66	108
67	111
68	112
69	119
70	123

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	10
11	11
12	12
13	13
14	15
15	16
16	17
17	18
18	19
19	20
20	22
21	23
22	24
23	25
24	27
25	28
26	31
27	32
28	33
29	34
30	36
31	37
32	39
33	40
34	43
35	44
36	47
37	48
38	51
39	52
40	55
41	57
42	58
43	60
44	63
45	64
46	67
47	68
48	71
49	72
50	73
51	76
52	79
53	80
54	82
55	85
56	87
57	88
58	92
59	95
60	96
61	97
62	99
63	100
64	102
65	103
66	108
67	111
68	112
69	119
70	123