A238348 - cp's OEIS frontend

A238348 Triangle T(n,k) read by rows: T(n,k) is the number of compositions of n where the k-th part is the last occurrence of a smallest part, n>=1, 1<=k<=n.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	3
9	2
10	1
11	4
12	4
13	4
14	3
15	1
16	5
17	7
18	8
19	7
20	4
21	1
22	8
23	11
24	14
25	14
26	11
27	5
28	1
29	12
30	18
31	23
32	27
33	25
34	16
35	6
36	1
37	19
38	27
39	39
40	49
41	51
42	41
43	22
44	7
45	1
46	28
47	44
48	64
49	85
50	98
51	92
52	63
53	29
54	8
55	1
56	45
57	69
58	103
59	144
60	180
61	189
62	155
63	92
64	37
65	9
66	1
67	70
68	109
69	166
70	241
71	319
72	366
73	344
74	247
75	129
76	46
77	10
78	1

[1, 1, 1, 2, 1, 1, 2, 3, 2, 1, 4, 4, 4, 3, 1, 5, 7, 8, 7, 4, 1, 8, 11, 14, 14, 11, 5, 1, 12, 18, 23, 27, 25, 16, 6, 1, 19, 27, 39, 49, 51, 41, 22, 7, 1, 28, 44, 64, 85, 98, 92, 63, 29, 8, 1, 45, 69, 103, 144, 180, 189, 155, 92, 37, 9, 1, 70, 109, 166, 241, 319, 366, 344, 247, 129, 46, 10, 1]

cp's OEIS Frontend

A238348 Triangle T(n,k) read by rows: T(n,k) is the number of compositions of n where the k-th part is the last occurrence of a smallest part, n>=1, 1<=k<=n.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	3
9	2
10	1
11	4
12	4
13	4
14	3
15	1
16	5
17	7
18	8
19	7
20	4
21	1
22	8
23	11
24	14
25	14
26	11
27	5
28	1
29	12
30	18
31	23
32	27
33	25
34	16
35	6
36	1
37	19
38	27
39	39
40	49
41	51
42	41
43	22
44	7
45	1
46	28
47	44
48	64
49	85
50	98
51	92
52	63
53	29
54	8
55	1
56	45
57	69
58	103
59	144
60	180
61	189
62	155
63	92
64	37
65	9
66	1
67	70
68	109
69	166
70	241
71	319
72	366
73	344
74	247
75	129
76	46
77	10
78	1

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	3
9	2
10	1
11	4
12	4
13	4
14	3
15	1
16	5
17	7
18	8
19	7
20	4
21	1
22	8
23	11
24	14
25	14
26	11
27	5
28	1
29	12
30	18
31	23
32	27
33	25
34	16
35	6
36	1
37	19
38	27
39	39
40	49
41	51
42	41
43	22
44	7
45	1
46	28
47	44
48	64
49	85
50	98
51	92
52	63
53	29
54	8
55	1
56	45
57	69
58	103
59	144
60	180
61	189
62	155
63	92
64	37
65	9
66	1
67	70
68	109
69	166
70	241
71	319
72	366
73	344
74	247
75	129
76	46
77	10
78	1

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	2
8	3
9	2
10	1
11	4
12	4
13	4
14	3
15	1
16	5
17	7
18	8
19	7
20	4
21	1
22	8
23	11
24	14
25	14
26	11
27	5
28	1
29	12
30	18
31	23
32	27
33	25
34	16
35	6
36	1
37	19
38	27
39	39
40	49
41	51
42	41
43	22
44	7
45	1
46	28
47	44
48	64
49	85
50	98
51	92
52	63
53	29
54	8
55	1
56	45
57	69
58	103
59	144
60	180
61	189
62	155
63	92
64	37
65	9
66	1
67	70
68	109
69	166
70	241
71	319
72	366
73	344
74	247
75	129
76	46
77	10
78	1