A216917 - cp's OEIS frontend

A216917 Square array read by antidiagonals, T(N,n) = lcm{1<=j<=N, gcd(j,n)=1 | j} for N >= 0, n >= 1.

n	a(n)
1	1
2	1
3	1
4	2
5	1
6	1
7	6
8	1
9	1
10	1
11	12
12	3
13	2
14	1
15	1
16	60
17	3
18	2
19	1
20	1
21	1
22	60
23	15
24	4
25	3
26	2
27	1
28	1
29	420
30	15
31	20
32	3
33	6
34	1
35	1
36	1
37	840
38	105
39	20
40	15
41	12
42	1
43	2
44	1
45	1
46	2520
47	105
48	140
49	15
50	12
51	1
52	6
53	1
54	1
55	1
56	2520
57	315
58	280
59	105
60	12
61	5
62	12
63	3
64	2
65	1
66	1
67	27720
68	315
69	280
70	105
71	84

[1, 1, 1, 2, 1, 1, 6, 1, 1, 1, 12, 3, 2, 1, 1, 60, 3, 2, 1, 1, 1, 60, 15, 4, 3, 2, 1, 1, 420, 15, 20, 3, 6, 1, 1, 1, 840, 105, 20, 15, 12, 1, 2, 1, 1, 2520, 105, 140, 15, 12, 1, 6, 1, 1, 1, 2520, 315, 280, 105, 12, 5, 12, 3, 2, 1, 1, 27720, 315, 280, 105, 84]

cp's OEIS Frontend

A216917 Square array read by antidiagonals, T(N,n) = lcm{1<=j<=N, gcd(j,n)=1 | j} for N >= 0, n >= 1.

Table of values

List of values