A070543 - cp's OEIS frontend

A070543 Triangular array read by rows: T(n,k) = number of k-dimensional isotropic subspaces of Spin(2n+1,C), n >= 1, 1 <= k <= n.

n	a(n)
1	1
2	3
3	3
4	5
5	7
6	6
7	7
8	11
9	12
10	10
11	9
12	15
13	18
14	18
15	15
16	11
17	19
18	24
19	26
20	25
21	21
22	13
23	23
24	30
25	34
26	35
27	33
28	28
29	15
30	27
31	36
32	42
33	45
34	45
35	42
36	36
37	17
38	31
39	42
40	50
41	55
42	57
43	56
44	52
45	45
46	19
47	35
48	48
49	58
50	65
51	69
52	70
53	68
54	63
55	55
56	21
57	39
58	54
59	66
60	75
61	81
62	84
63	84
64	81
65	75
66	66
67	23
68	43
69	60
70	74
71	85
72	93

[1, 3, 3, 5, 7, 6, 7, 11, 12, 10, 9, 15, 18, 18, 15, 11, 19, 24, 26, 25, 21, 13, 23, 30, 34, 35, 33, 28, 15, 27, 36, 42, 45, 45, 42, 36, 17, 31, 42, 50, 55, 57, 56, 52, 45, 19, 35, 48, 58, 65, 69, 70, 68, 63, 55, 21, 39, 54, 66, 75, 81, 84, 84, 81, 75, 66, 23, 43, 60, 74, 85, 93]

cp's OEIS Frontend

A070543 Triangular array read by rows: T(n,k) = number of k-dimensional isotropic subspaces of Spin(2n+1,C), n >= 1, 1 <= k <= n.

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	5
5	7
6	6
7	7
8	11
9	12
10	10
11	9
12	15
13	18
14	18
15	15
16	11
17	19
18	24
19	26
20	25
21	21
22	13
23	23
24	30
25	34
26	35
27	33
28	28
29	15
30	27
31	36
32	42
33	45
34	45
35	42
36	36
37	17
38	31
39	42
40	50
41	55
42	57
43	56
44	52
45	45
46	19
47	35
48	48
49	58
50	65
51	69
52	70
53	68
54	63
55	55
56	21
57	39
58	54
59	66
60	75
61	81
62	84
63	84
64	81
65	75
66	66
67	23
68	43
69	60
70	74
71	85
72	93

n	a(n)
1	1
2	3
3	3
4	5
5	7
6	6
7	7
8	11
9	12
10	10
11	9
12	15
13	18
14	18
15	15
16	11
17	19
18	24
19	26
20	25
21	21
22	13
23	23
24	30
25	34
26	35
27	33
28	28
29	15
30	27
31	36
32	42
33	45
34	45
35	42
36	36
37	17
38	31
39	42
40	50
41	55
42	57
43	56
44	52
45	45
46	19
47	35
48	48
49	58
50	65
51	69
52	70
53	68
54	63
55	55
56	21
57	39
58	54
59	66
60	75
61	81
62	84
63	84
64	81
65	75
66	66
67	23
68	43
69	60
70	74
71	85
72	93

n	a(n)
1	1
2	3
3	3
4	5
5	7
6	6
7	7
8	11
9	12
10	10
11	9
12	15
13	18
14	18
15	15
16	11
17	19
18	24
19	26
20	25
21	21
22	13
23	23
24	30
25	34
26	35
27	33
28	28
29	15
30	27
31	36
32	42
33	45
34	45
35	42
36	36
37	17
38	31
39	42
40	50
41	55
42	57
43	56
44	52
45	45
46	19
47	35
48	48
49	58
50	65
51	69
52	70
53	68
54	63
55	55
56	21
57	39
58	54
59	66
60	75
61	81
62	84
63	84
64	81
65	75
66	66
67	23
68	43
69	60
70	74
71	85
72	93