A303601 - cp's OEIS frontend

A303601 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + Bell(k) + Bell(m) with 0 <= a <= b and 0 < k <= m, where Bell(k) denotes the k-th Bell number A000110(k).

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

[0, 1, 2, 3, 3, 4, 4, 5, 5, 6, 4, 5, 7, 5, 4, 7, 7, 7, 8, 8, 5, 9, 10, 7, 6, 9, 8, 8, 6, 7, 10, 10, 9, 8, 7, 8, 9, 10, 6, 9, 11, 7, 6, 8, 9, 10, 7, 10, 8, 7, 8, 10, 10, 9, 10, 8, 9, 13, 14, 10, 11, 12, 12, 9, 9, 12, 11, 13, 11, 9]

cp's OEIS Frontend

A303601 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + Bell(k) + Bell(m) with 0 <= a <= b and 0 < k <= m, where Bell(k) denotes the k-th Bell number A000110(k).

Table of values

List of values

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

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

cp's OEIS Frontend

A303601 Number of ways to write n as a*(a+1)/2 + b*(b+1)/2 + Bell(k) + Bell(m) with 0 <= a <= b and 0 < k <= m, where Bell(k) denotes the k-th Bell number A000110(k).

Table of values

List of values

A303601 Number of ways to write n as a(a+1)/2 + b(b+1)/2 + Bell(k) + Bell(m) with 0 <= a <= b and 0 < k <= m, where Bell(k) denotes the k-th Bell number A000110(k).

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