A285118 - cp's OEIS frontend

A285118 Triangle read by rows: T(0,n) = T(n,n) = 0; and for n > 0, 0 < k < n, T(n,k) = C(n-1,k-1) AND C(n-1,k), where C(n,k) is binomial coefficient (A007318) & AND is bitwise-AND (A004198).

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	3
13	1
14	0
15	0
16	0
17	4
18	4
19	0
20	0
21	0
22	1
23	0
24	10
25	0
26	1
27	0
28	0
29	0
30	6
31	4
32	4
33	6
34	0
35	0
36	0
37	1
38	5
39	1
40	35
41	1
42	5
43	1
44	0
45	0
46	0
47	8
48	24
49	0
50	0
51	24
52	8
53	0
54	0
55	0
56	1
57	0
58	4
59	84
60	126
61	84
62	4
63	0
64	1
65	0
66	0
67	0
68	8
69	40
70	80
71	208
72	208
73	80
74	40
75	8
76	0
77	0
78	0
79	1
80	3
81	37
82	0
83	330
84	462
85	330
86	0
87	37
88	3
89	1
90	0
91	0
92	0
93	0
94	64
95	204
96	264
97	792
98	792
99	264
100	204
101	64
102	0
103	0
104	0

[0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 3, 1, 0, 0, 0, 4, 4, 0, 0, 0, 1, 0, 10, 0, 1, 0, 0, 0, 6, 4, 4, 6, 0, 0, 0, 1, 5, 1, 35, 1, 5, 1, 0, 0, 0, 8, 24, 0, 0, 24, 8, 0, 0, 0, 1, 0, 4, 84, 126, 84, 4, 0, 1, 0, 0, 0, 8, 40, 80, 208, 208, 80, 40, 8, 0, 0, 0, 1, 3, 37, 0, 330, 462, 330, 0, 37, 3, 1, 0, 0, 0, 0, 64, 204, 264, 792, 792, 264, 204, 64, 0, 0, 0]

cp's OEIS Frontend

A285118 Triangle read by rows: T(0,n) = T(n,n) = 0; and for n > 0, 0 < k < n, T(n,k) = C(n-1,k-1) AND C(n-1,k), where C(n,k) is binomial coefficient (A007318) & AND is bitwise-AND (A004198).

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	3
13	1
14	0
15	0
16	0
17	4
18	4
19	0
20	0
21	0
22	1
23	0
24	10
25	0
26	1
27	0
28	0
29	0
30	6
31	4
32	4
33	6
34	0
35	0
36	0
37	1
38	5
39	1
40	35
41	1
42	5
43	1
44	0
45	0
46	0
47	8
48	24
49	0
50	0
51	24
52	8
53	0
54	0
55	0
56	1
57	0
58	4
59	84
60	126
61	84
62	4
63	0
64	1
65	0
66	0
67	0
68	8
69	40
70	80
71	208
72	208
73	80
74	40
75	8
76	0
77	0
78	0
79	1
80	3
81	37
82	0
83	330
84	462
85	330
86	0
87	37
88	3
89	1
90	0
91	0
92	0
93	0
94	64
95	204
96	264
97	792
98	792
99	264
100	204
101	64
102	0
103	0
104	0

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	3
13	1
14	0
15	0
16	0
17	4
18	4
19	0
20	0
21	0
22	1
23	0
24	10
25	0
26	1
27	0
28	0
29	0
30	6
31	4
32	4
33	6
34	0
35	0
36	0
37	1
38	5
39	1
40	35
41	1
42	5
43	1
44	0
45	0
46	0
47	8
48	24
49	0
50	0
51	24
52	8
53	0
54	0
55	0
56	1
57	0
58	4
59	84
60	126
61	84
62	4
63	0
64	1
65	0
66	0
67	0
68	8
69	40
70	80
71	208
72	208
73	80
74	40
75	8
76	0
77	0
78	0
79	1
80	3
81	37
82	0
83	330
84	462
85	330
86	0
87	37
88	3
89	1
90	0
91	0
92	0
93	0
94	64
95	204
96	264
97	792
98	792
99	264
100	204
101	64
102	0
103	0
104	0

n	a(n)
0	0
1	0
2	0
3	0
4	1
5	0
6	0
7	0
8	0
9	0
10	0
11	1
12	3
13	1
14	0
15	0
16	0
17	4
18	4
19	0
20	0
21	0
22	1
23	0
24	10
25	0
26	1
27	0
28	0
29	0
30	6
31	4
32	4
33	6
34	0
35	0
36	0
37	1
38	5
39	1
40	35
41	1
42	5
43	1
44	0
45	0
46	0
47	8
48	24
49	0
50	0
51	24
52	8
53	0
54	0
55	0
56	1
57	0
58	4
59	84
60	126
61	84
62	4
63	0
64	1
65	0
66	0
67	0
68	8
69	40
70	80
71	208
72	208
73	80
74	40
75	8
76	0
77	0
78	0
79	1
80	3
81	37
82	0
83	330
84	462
85	330
86	0
87	37
88	3
89	1
90	0
91	0
92	0
93	0
94	64
95	204
96	264
97	792
98	792
99	264
100	204
101	64
102	0
103	0
104	0