A054081 - cp's OEIS frontend

A054081 Array T by antidiagonals: for n >= 0 and k >= 1, let p(k)=least positive integer not already in a(i), q(k)=p(k)+k+n-1, a(p(k))=q(k), a(q(k))=p(k); then for h>=1, T(n,h)=a(h).

n	a(n)
1	1
2	3
3	2
4	2
5	1
6	3
7	6
8	5
9	5
10	4
11	8
12	7
13	1
14	6
15	5
16	4
17	3
18	8
19	8
20	7
21	6
22	11
23	10
24	2
25	1
26	9
27	8
28	7
29	5
30	4
31	11
32	11
33	11
34	10
35	9
36	8
37	14
38	13
39	13
40	2
41	1
42	12
43	11
44	10
45	9
46	16
47	15
48	4
49	14
50	14
51	14
52	13
53	12
54	11
55	10
56	7
57	6
58	16
59	3
60	2
61	1
62	15
63	14
64	13
65	12
66	11
67	19
68	18
69	18
70	17
71	17
72	17
73	17
74	16
75	15
76	14
77	13
78	12

[1, 3, 2, 2, 1, 3, 6, 5, 5, 4, 8, 7, 1, 6, 5, 4, 3, 8, 8, 7, 6, 11, 10, 2, 1, 9, 8, 7, 5, 4, 11, 11, 11, 10, 9, 8, 14, 13, 13, 2, 1, 12, 11, 10, 9, 16, 15, 4, 14, 14, 14, 13, 12, 11, 10, 7, 6, 16, 3, 2, 1, 15, 14, 13, 12, 11, 19, 18, 18, 17, 17, 17, 17, 16, 15, 14, 13, 12]

cp's OEIS Frontend

A054081 Array T by antidiagonals: for n >= 0 and k >= 1, let p(k)=least positive integer not already in a(i), q(k)=p(k)+k+n-1, a(p(k))=q(k), a(q(k))=p(k); then for h>=1, T(n,h)=a(h).

Table of values

List of values

n	a(n)
1	1
2	3
3	2
4	2
5	1
6	3
7	6
8	5
9	5
10	4
11	8
12	7
13	1
14	6
15	5
16	4
17	3
18	8
19	8
20	7
21	6
22	11
23	10
24	2
25	1
26	9
27	8
28	7
29	5
30	4
31	11
32	11
33	11
34	10
35	9
36	8
37	14
38	13
39	13
40	2
41	1
42	12
43	11
44	10
45	9
46	16
47	15
48	4
49	14
50	14
51	14
52	13
53	12
54	11
55	10
56	7
57	6
58	16
59	3
60	2
61	1
62	15
63	14
64	13
65	12
66	11
67	19
68	18
69	18
70	17
71	17
72	17
73	17
74	16
75	15
76	14
77	13
78	12

n	a(n)
1	1
2	3
3	2
4	2
5	1
6	3
7	6
8	5
9	5
10	4
11	8
12	7
13	1
14	6
15	5
16	4
17	3
18	8
19	8
20	7
21	6
22	11
23	10
24	2
25	1
26	9
27	8
28	7
29	5
30	4
31	11
32	11
33	11
34	10
35	9
36	8
37	14
38	13
39	13
40	2
41	1
42	12
43	11
44	10
45	9
46	16
47	15
48	4
49	14
50	14
51	14
52	13
53	12
54	11
55	10
56	7
57	6
58	16
59	3
60	2
61	1
62	15
63	14
64	13
65	12
66	11
67	19
68	18
69	18
70	17
71	17
72	17
73	17
74	16
75	15
76	14
77	13
78	12

n	a(n)
1	1
2	3
3	2
4	2
5	1
6	3
7	6
8	5
9	5
10	4
11	8
12	7
13	1
14	6
15	5
16	4
17	3
18	8
19	8
20	7
21	6
22	11
23	10
24	2
25	1
26	9
27	8
28	7
29	5
30	4
31	11
32	11
33	11
34	10
35	9
36	8
37	14
38	13
39	13
40	2
41	1
42	12
43	11
44	10
45	9
46	16
47	15
48	4
49	14
50	14
51	14
52	13
53	12
54	11
55	10
56	7
57	6
58	16
59	3
60	2
61	1
62	15
63	14
64	13
65	12
66	11
67	19
68	18
69	18
70	17
71	17
72	17
73	17
74	16
75	15
76	14
77	13
78	12