A285116 - cp's OEIS frontend

A285116 Triangle read by rows: T(0,n) = T(n,n) = 1; and for n > 0, 0 < k < n, T(n,k) = C(n-1,k-1) OR C(n-1,k), where C(n,k) is binomial coefficient (A007318) and OR is bitwise-OR (A003986).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	3
9	1
10	1
11	3
12	3
13	3
14	1
15	1
16	5
17	6
18	6
19	5
20	1
21	1
22	5
23	15
24	10
25	15
26	5
27	1
28	1
29	7
30	15
31	31
32	31
33	15
34	7
35	1
36	1
37	7
38	23
39	55
40	35
41	55
42	23
43	7
44	1
45	1
46	9
47	28
48	60
49	126
50	126
51	60
52	28
53	9
54	1
55	1
56	9
57	45
58	116
59	126
60	126
61	126
62	116
63	45
64	9
65	1
66	1
67	11
68	47
69	125
70	250
71	254
72	254
73	250
74	125
75	47
76	11
77	1
78	1
79	11
80	63
81	183
82	495
83	462
84	462
85	462
86	495
87	183
88	63
89	11
90	1

[1, 1, 1, 1, 1, 1, 1, 3, 3, 1, 1, 3, 3, 3, 1, 1, 5, 6, 6, 5, 1, 1, 5, 15, 10, 15, 5, 1, 1, 7, 15, 31, 31, 15, 7, 1, 1, 7, 23, 55, 35, 55, 23, 7, 1, 1, 9, 28, 60, 126, 126, 60, 28, 9, 1, 1, 9, 45, 116, 126, 126, 126, 116, 45, 9, 1, 1, 11, 47, 125, 250, 254, 254, 250, 125, 47, 11, 1, 1, 11, 63, 183, 495, 462, 462, 462, 495, 183, 63, 11, 1]

cp's OEIS Frontend

A285116 Triangle read by rows: T(0,n) = T(n,n) = 1; and for n > 0, 0 < k < n, T(n,k) = C(n-1,k-1) OR C(n-1,k), where C(n,k) is binomial coefficient (A007318) and OR is bitwise-OR (A003986).

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	3
9	1
10	1
11	3
12	3
13	3
14	1
15	1
16	5
17	6
18	6
19	5
20	1
21	1
22	5
23	15
24	10
25	15
26	5
27	1
28	1
29	7
30	15
31	31
32	31
33	15
34	7
35	1
36	1
37	7
38	23
39	55
40	35
41	55
42	23
43	7
44	1
45	1
46	9
47	28
48	60
49	126
50	126
51	60
52	28
53	9
54	1
55	1
56	9
57	45
58	116
59	126
60	126
61	126
62	116
63	45
64	9
65	1
66	1
67	11
68	47
69	125
70	250
71	254
72	254
73	250
74	125
75	47
76	11
77	1
78	1
79	11
80	63
81	183
82	495
83	462
84	462
85	462
86	495
87	183
88	63
89	11
90	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	3
9	1
10	1
11	3
12	3
13	3
14	1
15	1
16	5
17	6
18	6
19	5
20	1
21	1
22	5
23	15
24	10
25	15
26	5
27	1
28	1
29	7
30	15
31	31
32	31
33	15
34	7
35	1
36	1
37	7
38	23
39	55
40	35
41	55
42	23
43	7
44	1
45	1
46	9
47	28
48	60
49	126
50	126
51	60
52	28
53	9
54	1
55	1
56	9
57	45
58	116
59	126
60	126
61	126
62	116
63	45
64	9
65	1
66	1
67	11
68	47
69	125
70	250
71	254
72	254
73	250
74	125
75	47
76	11
77	1
78	1
79	11
80	63
81	183
82	495
83	462
84	462
85	462
86	495
87	183
88	63
89	11
90	1

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	1
7	3
8	3
9	1
10	1
11	3
12	3
13	3
14	1
15	1
16	5
17	6
18	6
19	5
20	1
21	1
22	5
23	15
24	10
25	15
26	5
27	1
28	1
29	7
30	15
31	31
32	31
33	15
34	7
35	1
36	1
37	7
38	23
39	55
40	35
41	55
42	23
43	7
44	1
45	1
46	9
47	28
48	60
49	126
50	126
51	60
52	28
53	9
54	1
55	1
56	9
57	45
58	116
59	126
60	126
61	126
62	116
63	45
64	9
65	1
66	1
67	11
68	47
69	125
70	250
71	254
72	254
73	250
74	125
75	47
76	11
77	1
78	1
79	11
80	63
81	183
82	495
83	462
84	462
85	462
86	495
87	183
88	63
89	11
90	1