A321449 - cp's OEIS frontend

A321449 Regular triangle read by rows where T(n,k) is the number of twice-partitions of n with a combined total of k parts.

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	5
14	5
15	0
16	1
17	4
18	8
19	8
20	7
21	0
22	1
23	6
24	13
25	19
26	16
27	11
28	0
29	1
30	6
31	17
32	27
33	32
34	24
35	15
36	0
37	1
38	8
39	24
40	47
41	61
42	62
43	41
44	22
45	0
46	1
47	8
48	30
49	63
50	99
51	111
52	100
53	61
54	30
55	0
56	1
57	10
58	38
59	94
60	158
61	209
62	210
63	170
64	95
65	42
66	0
67	1
68	10
69	45
70	119
71	229
72	328
73	382
74	348
75	259
76	136
77	56

[1, 0, 1, 0, 1, 2, 0, 1, 2, 3, 0, 1, 4, 5, 5, 0, 1, 4, 8, 8, 7, 0, 1, 6, 13, 19, 16, 11, 0, 1, 6, 17, 27, 32, 24, 15, 0, 1, 8, 24, 47, 61, 62, 41, 22, 0, 1, 8, 30, 63, 99, 111, 100, 61, 30, 0, 1, 10, 38, 94, 158, 209, 210, 170, 95, 42, 0, 1, 10, 45, 119, 229, 328, 382, 348, 259, 136, 56]

cp's OEIS Frontend

A321449 Regular triangle read by rows where T(n,k) is the number of twice-partitions of n with a combined total of k parts.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	5
14	5
15	0
16	1
17	4
18	8
19	8
20	7
21	0
22	1
23	6
24	13
25	19
26	16
27	11
28	0
29	1
30	6
31	17
32	27
33	32
34	24
35	15
36	0
37	1
38	8
39	24
40	47
41	61
42	62
43	41
44	22
45	0
46	1
47	8
48	30
49	63
50	99
51	111
52	100
53	61
54	30
55	0
56	1
57	10
58	38
59	94
60	158
61	209
62	210
63	170
64	95
65	42
66	0
67	1
68	10
69	45
70	119
71	229
72	328
73	382
74	348
75	259
76	136
77	56

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	5
14	5
15	0
16	1
17	4
18	8
19	8
20	7
21	0
22	1
23	6
24	13
25	19
26	16
27	11
28	0
29	1
30	6
31	17
32	27
33	32
34	24
35	15
36	0
37	1
38	8
39	24
40	47
41	61
42	62
43	41
44	22
45	0
46	1
47	8
48	30
49	63
50	99
51	111
52	100
53	61
54	30
55	0
56	1
57	10
58	38
59	94
60	158
61	209
62	210
63	170
64	95
65	42
66	0
67	1
68	10
69	45
70	119
71	229
72	328
73	382
74	348
75	259
76	136
77	56

n	a(n)
0	1
1	0
2	1
3	0
4	1
5	2
6	0
7	1
8	2
9	3
10	0
11	1
12	4
13	5
14	5
15	0
16	1
17	4
18	8
19	8
20	7
21	0
22	1
23	6
24	13
25	19
26	16
27	11
28	0
29	1
30	6
31	17
32	27
33	32
34	24
35	15
36	0
37	1
38	8
39	24
40	47
41	61
42	62
43	41
44	22
45	0
46	1
47	8
48	30
49	63
50	99
51	111
52	100
53	61
54	30
55	0
56	1
57	10
58	38
59	94
60	158
61	209
62	210
63	170
64	95
65	42
66	0
67	1
68	10
69	45
70	119
71	229
72	328
73	382
74	348
75	259
76	136
77	56