A353590 - cp's OEIS frontend

A353590 Lexicographically earliest permutation of the nonnegative integers filling an infinite square array by falling antidiagonals so that the elements on any 2 X 2 square sum to a square.

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	4
6	5
7	15
8	13
9	7
10	8
11	26
12	30
13	12
14	9
15	10
16	25
17	29
18	45
19	21
20	11
21	14
22	38
23	20
24	17
25	22
26	23
27	16
28	18
29	19
30	61
31	34
32	37
33	55
34	31
35	24
36	27
37	49
38	51
39	54
40	33
41	82
42	35
43	50
44	28
45	32
46	75
47	77
48	59
49	48
50	44
51	53
52	80
53	42
54	36
55	39
56	62
57	88
58	69
59	64
60	71
61	46
62	57
63	84
64	63
65	40
66	41
67	92
68	99
69	90
70	97
71	73
72	95

[0, 1, 2, 3, 6, 4, 5, 15, 13, 7, 8, 26, 30, 12, 9, 10, 25, 29, 45, 21, 11, 14, 38, 20, 17, 22, 23, 16, 18, 19, 61, 34, 37, 55, 31, 24, 27, 49, 51, 54, 33, 82, 35, 50, 28, 32, 75, 77, 59, 48, 44, 53, 80, 42, 36, 39, 62, 88, 69, 64, 71, 46, 57, 84, 63, 40, 41, 92, 99, 90, 97, 73, 95]

cp's OEIS Frontend

A353590 Lexicographically earliest permutation of the nonnegative integers filling an infinite square array by falling antidiagonals so that the elements on any 2 X 2 square sum to a square.

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	4
6	5
7	15
8	13
9	7
10	8
11	26
12	30
13	12
14	9
15	10
16	25
17	29
18	45
19	21
20	11
21	14
22	38
23	20
24	17
25	22
26	23
27	16
28	18
29	19
30	61
31	34
32	37
33	55
34	31
35	24
36	27
37	49
38	51
39	54
40	33
41	82
42	35
43	50
44	28
45	32
46	75
47	77
48	59
49	48
50	44
51	53
52	80
53	42
54	36
55	39
56	62
57	88
58	69
59	64
60	71
61	46
62	57
63	84
64	63
65	40
66	41
67	92
68	99
69	90
70	97
71	73
72	95

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	4
6	5
7	15
8	13
9	7
10	8
11	26
12	30
13	12
14	9
15	10
16	25
17	29
18	45
19	21
20	11
21	14
22	38
23	20
24	17
25	22
26	23
27	16
28	18
29	19
30	61
31	34
32	37
33	55
34	31
35	24
36	27
37	49
38	51
39	54
40	33
41	82
42	35
43	50
44	28
45	32
46	75
47	77
48	59
49	48
50	44
51	53
52	80
53	42
54	36
55	39
56	62
57	88
58	69
59	64
60	71
61	46
62	57
63	84
64	63
65	40
66	41
67	92
68	99
69	90
70	97
71	73
72	95

n	a(n)
0	0
1	1
2	2
3	3
4	6
5	4
6	5
7	15
8	13
9	7
10	8
11	26
12	30
13	12
14	9
15	10
16	25
17	29
18	45
19	21
20	11
21	14
22	38
23	20
24	17
25	22
26	23
27	16
28	18
29	19
30	61
31	34
32	37
33	55
34	31
35	24
36	27
37	49
38	51
39	54
40	33
41	82
42	35
43	50
44	28
45	32
46	75
47	77
48	59
49	48
50	44
51	53
52	80
53	42
54	36
55	39
56	62
57	88
58	69
59	64
60	71
61	46
62	57
63	84
64	63
65	40
66	41
67	92
68	99
69	90
70	97
71	73
72	95