A183225 - cp's OEIS frontend

A183225 Array: row r is the complement of the (r+2)-gonal numbers; by antidiagonals.

n	a(n)
1	2
2	4
3	2
4	5
5	3
6	2
7	7
8	5
9	3
10	2
11	8
12	6
13	4
14	3
15	2
16	9
17	7
18	6
19	4
20	3
21	2
22	11
23	8
24	7
25	5
26	4
27	3
28	2
29	12
30	10
31	8
32	7
33	5
34	4
35	3
36	2
37	13
38	11
39	9
40	8
41	6
42	5
43	4
44	3
45	2
46	14
47	12
48	10
49	9
50	8
51	6
52	5
53	4
54	3
55	2
56	16
57	13
58	11
59	10
60	9
61	7
62	6
63	5
64	4
65	3
66	2
67	17
68	14
69	13
70	11
71	10
72	9
73	7
74	6
75	5
76	4
77	3
78	2
79	18

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

cp's OEIS Frontend

A183225 Array: row r is the complement of the (r+2)-gonal numbers; by antidiagonals.

Table of values

List of values

n	a(n)
1	2
2	4
3	2
4	5
5	3
6	2
7	7
8	5
9	3
10	2
11	8
12	6
13	4
14	3
15	2
16	9
17	7
18	6
19	4
20	3
21	2
22	11
23	8
24	7
25	5
26	4
27	3
28	2
29	12
30	10
31	8
32	7
33	5
34	4
35	3
36	2
37	13
38	11
39	9
40	8
41	6
42	5
43	4
44	3
45	2
46	14
47	12
48	10
49	9
50	8
51	6
52	5
53	4
54	3
55	2
56	16
57	13
58	11
59	10
60	9
61	7
62	6
63	5
64	4
65	3
66	2
67	17
68	14
69	13
70	11
71	10
72	9
73	7
74	6
75	5
76	4
77	3
78	2
79	18

n	a(n)
1	2
2	4
3	2
4	5
5	3
6	2
7	7
8	5
9	3
10	2
11	8
12	6
13	4
14	3
15	2
16	9
17	7
18	6
19	4
20	3
21	2
22	11
23	8
24	7
25	5
26	4
27	3
28	2
29	12
30	10
31	8
32	7
33	5
34	4
35	3
36	2
37	13
38	11
39	9
40	8
41	6
42	5
43	4
44	3
45	2
46	14
47	12
48	10
49	9
50	8
51	6
52	5
53	4
54	3
55	2
56	16
57	13
58	11
59	10
60	9
61	7
62	6
63	5
64	4
65	3
66	2
67	17
68	14
69	13
70	11
71	10
72	9
73	7
74	6
75	5
76	4
77	3
78	2
79	18

n	a(n)
1	2
2	4
3	2
4	5
5	3
6	2
7	7
8	5
9	3
10	2
11	8
12	6
13	4
14	3
15	2
16	9
17	7
18	6
19	4
20	3
21	2
22	11
23	8
24	7
25	5
26	4
27	3
28	2
29	12
30	10
31	8
32	7
33	5
34	4
35	3
36	2
37	13
38	11
39	9
40	8
41	6
42	5
43	4
44	3
45	2
46	14
47	12
48	10
49	9
50	8
51	6
52	5
53	4
54	3
55	2
56	16
57	13
58	11
59	10
60	9
61	7
62	6
63	5
64	4
65	3
66	2
67	17
68	14
69	13
70	11
71	10
72	9
73	7
74	6
75	5
76	4
77	3
78	2
79	18