A209279 - cp's OEIS frontend

A209279 First inverse function (numbers of rows) for pairing function A185180.

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	2
8	3
9	1
10	4
11	3
12	2
13	4
14	1
15	5
16	3
17	4
18	2
19	5
20	1
21	6
22	4
23	3
24	5
25	2
26	6
27	1
28	7
29	4
30	5
31	3
32	6
33	2
34	7
35	1
36	8
37	5
38	4
39	6
40	3
41	7
42	2
43	8
44	1
45	9
46	5
47	6
48	4
49	7
50	3
51	8
52	2
53	9
54	1
55	10
56	6
57	5
58	7
59	4
60	8
61	3
62	9
63	2
64	10
65	1
66	11
67	6
68	7
69	5
70	8
71	4
72	9
73	3
74	10
75	2
76	11
77	1
78	12
79	7
80	6
81	8
82	5
83	9
84	4
85	10
86	3
87	11
88	2
89	12
90	1
91	13

[1, 1, 2, 2, 1, 3, 2, 3, 1, 4, 3, 2, 4, 1, 5, 3, 4, 2, 5, 1, 6, 4, 3, 5, 2, 6, 1, 7, 4, 5, 3, 6, 2, 7, 1, 8, 5, 4, 6, 3, 7, 2, 8, 1, 9, 5, 6, 4, 7, 3, 8, 2, 9, 1, 10, 6, 5, 7, 4, 8, 3, 9, 2, 10, 1, 11, 6, 7, 5, 8, 4, 9, 3, 10, 2, 11, 1, 12, 7, 6, 8, 5, 9, 4, 10, 3, 11, 2, 12, 1, 13]

cp's OEIS Frontend

A209279 First inverse function (numbers of rows) for pairing function A185180.

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	2
8	3
9	1
10	4
11	3
12	2
13	4
14	1
15	5
16	3
17	4
18	2
19	5
20	1
21	6
22	4
23	3
24	5
25	2
26	6
27	1
28	7
29	4
30	5
31	3
32	6
33	2
34	7
35	1
36	8
37	5
38	4
39	6
40	3
41	7
42	2
43	8
44	1
45	9
46	5
47	6
48	4
49	7
50	3
51	8
52	2
53	9
54	1
55	10
56	6
57	5
58	7
59	4
60	8
61	3
62	9
63	2
64	10
65	1
66	11
67	6
68	7
69	5
70	8
71	4
72	9
73	3
74	10
75	2
76	11
77	1
78	12
79	7
80	6
81	8
82	5
83	9
84	4
85	10
86	3
87	11
88	2
89	12
90	1
91	13

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	2
8	3
9	1
10	4
11	3
12	2
13	4
14	1
15	5
16	3
17	4
18	2
19	5
20	1
21	6
22	4
23	3
24	5
25	2
26	6
27	1
28	7
29	4
30	5
31	3
32	6
33	2
34	7
35	1
36	8
37	5
38	4
39	6
40	3
41	7
42	2
43	8
44	1
45	9
46	5
47	6
48	4
49	7
50	3
51	8
52	2
53	9
54	1
55	10
56	6
57	5
58	7
59	4
60	8
61	3
62	9
63	2
64	10
65	1
66	11
67	6
68	7
69	5
70	8
71	4
72	9
73	3
74	10
75	2
76	11
77	1
78	12
79	7
80	6
81	8
82	5
83	9
84	4
85	10
86	3
87	11
88	2
89	12
90	1
91	13

n	a(n)
1	1
2	1
3	2
4	2
5	1
6	3
7	2
8	3
9	1
10	4
11	3
12	2
13	4
14	1
15	5
16	3
17	4
18	2
19	5
20	1
21	6
22	4
23	3
24	5
25	2
26	6
27	1
28	7
29	4
30	5
31	3
32	6
33	2
34	7
35	1
36	8
37	5
38	4
39	6
40	3
41	7
42	2
43	8
44	1
45	9
46	5
47	6
48	4
49	7
50	3
51	8
52	2
53	9
54	1
55	10
56	6
57	5
58	7
59	4
60	8
61	3
62	9
63	2
64	10
65	1
66	11
67	6
68	7
69	5
70	8
71	4
72	9
73	3
74	10
75	2
76	11
77	1
78	12
79	7
80	6
81	8
82	5
83	9
84	4
85	10
86	3
87	11
88	2
89	12
90	1
91	13