A342908 - cp's OEIS frontend

A342908 Irregular triangular array of coefficients of the cd-index of the symmetric group S_n (or Boolean algebra B_n), n>=1.

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	1
9	3
10	5
11	3
12	4
13	1
14	4
15	9
16	9
17	4
18	12
19	10
20	12
21	1
22	5
23	14
24	19
25	14
26	5
27	25
28	35
29	42
30	18
31	35
32	25
33	34
34	1
35	6
36	20
37	34
38	34
39	20
40	6
41	44
42	84
43	100
44	72
45	140
46	100
47	28
48	72
49	84
50	44
51	136
52	112
53	112
54	136
55	1
56	7
57	27
58	55
59	69
60	55
61	27
62	7
63	70
64	168
65	198
66	196
67	378
68	268
69	126
70	324
71	378
72	198
73	40
74	126
75	196
76	168
77	70
78	364
79	504
80	504
81	612
82	256
83	420
84	504
85	256
86	504
87	364
88	496

[1, 1, 1, 1, 1, 2, 2, 1, 3, 5, 3, 4, 1, 4, 9, 9, 4, 12, 10, 12, 1, 5, 14, 19, 14, 5, 25, 35, 42, 18, 35, 25, 34, 1, 6, 20, 34, 34, 20, 6, 44, 84, 100, 72, 140, 100, 28, 72, 84, 44, 136, 112, 112, 136, 1, 7, 27, 55, 69, 55, 27, 7, 70, 168, 198, 196, 378, 268, 126, 324, 378, 198, 40, 126, 196, 168, 70, 364, 504, 504, 612, 256, 420, 504, 256, 504, 364, 496]

cp's OEIS Frontend

A342908 Irregular triangular array of coefficients of the cd-index of the symmetric group S_n (or Boolean algebra B_n), n>=1.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	1
9	3
10	5
11	3
12	4
13	1
14	4
15	9
16	9
17	4
18	12
19	10
20	12
21	1
22	5
23	14
24	19
25	14
26	5
27	25
28	35
29	42
30	18
31	35
32	25
33	34
34	1
35	6
36	20
37	34
38	34
39	20
40	6
41	44
42	84
43	100
44	72
45	140
46	100
47	28
48	72
49	84
50	44
51	136
52	112
53	112
54	136
55	1
56	7
57	27
58	55
59	69
60	55
61	27
62	7
63	70
64	168
65	198
66	196
67	378
68	268
69	126
70	324
71	378
72	198
73	40
74	126
75	196
76	168
77	70
78	364
79	504
80	504
81	612
82	256
83	420
84	504
85	256
86	504
87	364
88	496

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	1
9	3
10	5
11	3
12	4
13	1
14	4
15	9
16	9
17	4
18	12
19	10
20	12
21	1
22	5
23	14
24	19
25	14
26	5
27	25
28	35
29	42
30	18
31	35
32	25
33	34
34	1
35	6
36	20
37	34
38	34
39	20
40	6
41	44
42	84
43	100
44	72
45	140
46	100
47	28
48	72
49	84
50	44
51	136
52	112
53	112
54	136
55	1
56	7
57	27
58	55
59	69
60	55
61	27
62	7
63	70
64	168
65	198
66	196
67	378
68	268
69	126
70	324
71	378
72	198
73	40
74	126
75	196
76	168
77	70
78	364
79	504
80	504
81	612
82	256
83	420
84	504
85	256
86	504
87	364
88	496

n	a(n)
1	1
2	1
3	1
4	1
5	1
6	2
7	2
8	1
9	3
10	5
11	3
12	4
13	1
14	4
15	9
16	9
17	4
18	12
19	10
20	12
21	1
22	5
23	14
24	19
25	14
26	5
27	25
28	35
29	42
30	18
31	35
32	25
33	34
34	1
35	6
36	20
37	34
38	34
39	20
40	6
41	44
42	84
43	100
44	72
45	140
46	100
47	28
48	72
49	84
50	44
51	136
52	112
53	112
54	136
55	1
56	7
57	27
58	55
59	69
60	55
61	27
62	7
63	70
64	168
65	198
66	196
67	378
68	268
69	126
70	324
71	378
72	198
73	40
74	126
75	196
76	168
77	70
78	364
79	504
80	504
81	612
82	256
83	420
84	504
85	256
86	504
87	364
88	496