A273964 - cp's OEIS frontend

A273964 T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.

n	a(n)
1	1
2	2
3	2
4	5
5	10
6	5
7	15
8	105
9	105
10	15
11	51
12	1264
13	2766
14	1264
15	51
16	187
17	15418
18	49702
19	49702
20	15418
21	187
22	715
23	188465
24	784878
25	543906
26	784878
27	188465
28	715
29	2795
30	2304141
31	13322548
32	4010258
33	4010258
34	13322548
35	2304141
36	2795
37	11051
38	28171070
39	232027264

[1, 2, 2, 5, 10, 5, 15, 105, 105, 15, 51, 1264, 2766, 1264, 51, 187, 15418, 49702, 49702, 15418, 187, 715, 188465, 784878, 543906, 784878, 188465, 715, 2795, 2304141, 13322548, 4010258, 4010258, 13322548, 2304141, 2795, 11051, 28171070, 232027264]

cp's OEIS Frontend

A273964 T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.

Table of values

List of values