A039754 - cp's OEIS frontend

A039754 Irregular triangle read by rows: T(n,k) = number of binary codes of length n with k words (n >= 0, 0 <= k <= 2^n); also number of 0/1-polytopes with vertices from the unit n-cube; also number of inequivalent Boolean functions of n variables with exactly k nonzero values under action of Jevons group.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	2
8	1
9	1
10	1
11	1
12	3
13	3
14	6
15	3
16	3
17	1
18	1
19	1
20	1
21	4
22	6
23	19
24	27
25	50
26	56
27	74
28	56
29	50
30	27
31	19
32	6
33	4
34	1
35	1
36	1
37	1
38	5
39	10
40	47
41	131
42	472
43	1326
44	3779
45	9013
46	19963
47	38073
48	65664
49	98804
50	133576
51	158658
52	169112
53	158658
54	133576
55	98804
56	65664
57	38073
58	19963
59	9013
60	3779
61	1326
62	472
63	131
64	47
65	10
66	5
67	1
68	1

[1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 3, 6, 3, 3, 1, 1, 1, 1, 4, 6, 19, 27, 50, 56, 74, 56, 50, 27, 19, 6, 4, 1, 1, 1, 1, 5, 10, 47, 131, 472, 1326, 3779, 9013, 19963, 38073, 65664, 98804, 133576, 158658, 169112, 158658, 133576, 98804, 65664, 38073, 19963, 9013, 3779, 1326, 472, 131, 47, 10, 5, 1, 1]

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