A003056 - cp's OEIS frontend

A003056 n appears n+1 times. Also the array A(n,k) = n+k (n >= 0, k >= 0) read by antidiagonals. Also inverse of triangular numbers.

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	4
13	4
14	4
15	5
16	5
17	5
18	5
19	5
20	5
21	6
22	6
23	6
24	6
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	8
45	9
46	9
47	9
48	9
49	9
50	9
51	9
52	9
53	9
54	9
55	10
56	10
57	10
58	10
59	10
60	10
61	10
62	10
63	10
64	10
65	10
66	11
67	11
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	11
76	11
77	11
78	12
79	12
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12
90	12

[0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12]

cp's OEIS Frontend

A003056 n appears n+1 times. Also the array A(n,k) = n+k (n >= 0, k >= 0) read by antidiagonals. Also inverse of triangular numbers.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	4
13	4
14	4
15	5
16	5
17	5
18	5
19	5
20	5
21	6
22	6
23	6
24	6
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	8
45	9
46	9
47	9
48	9
49	9
50	9
51	9
52	9
53	9
54	9
55	10
56	10
57	10
58	10
59	10
60	10
61	10
62	10
63	10
64	10
65	10
66	11
67	11
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	11
76	11
77	11
78	12
79	12
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12
90	12

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	4
13	4
14	4
15	5
16	5
17	5
18	5
19	5
20	5
21	6
22	6
23	6
24	6
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	8
45	9
46	9
47	9
48	9
49	9
50	9
51	9
52	9
53	9
54	9
55	10
56	10
57	10
58	10
59	10
60	10
61	10
62	10
63	10
64	10
65	10
66	11
67	11
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	11
76	11
77	11
78	12
79	12
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12
90	12

n	a(n)
0	0
1	1
2	1
3	2
4	2
5	2
6	3
7	3
8	3
9	3
10	4
11	4
12	4
13	4
14	4
15	5
16	5
17	5
18	5
19	5
20	5
21	6
22	6
23	6
24	6
25	6
26	6
27	6
28	7
29	7
30	7
31	7
32	7
33	7
34	7
35	7
36	8
37	8
38	8
39	8
40	8
41	8
42	8
43	8
44	8
45	9
46	9
47	9
48	9
49	9
50	9
51	9
52	9
53	9
54	9
55	10
56	10
57	10
58	10
59	10
60	10
61	10
62	10
63	10
64	10
65	10
66	11
67	11
68	11
69	11
70	11
71	11
72	11
73	11
74	11
75	11
76	11
77	11
78	12
79	12
80	12
81	12
82	12
83	12
84	12
85	12
86	12
87	12
88	12
89	12
90	12