A212044 - cp's OEIS frontend

A212044 T(n,k)=Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any element within a city block distance of two, and containing the value n(n+1)/2-k-1.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	4
7	0
8	0
9	5
10	19
11	0
12	0
13	5
14	119
15	58
16	0
17	0
18	5
19	319
20	1310
21	136
22	0
23	0
24	5
25	447
26	14949
27	7849
28	271
29	0
30	0
31	0
32	463
33	94131
34	253072
35	32696
36	484
37	0
38	0
39	0
40	463
41	339764
42	5054845
43	2326567
44	107400
45	799
46	0
47	0
48	0
49	463
50	728291
51	65635205
52	109065807
53	14516200
54	298404

[0, 0, 1, 0, 1, 4, 0, 0, 5, 19, 0, 0, 5, 119, 58, 0, 0, 5, 319, 1310, 136, 0, 0, 5, 447, 14949, 7849, 271, 0, 0, 0, 463, 94131, 253072, 32696, 484, 0, 0, 0, 463, 339764, 5054845, 2326567, 107400, 799, 0, 0, 0, 463, 728291, 65635205, 109065807, 14516200, 298404]

cp's OEIS Frontend

A212044 T(n,k)=Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any element within a city block distance of two, and containing the value n(n+1)/2-k-1.

Table of values

List of values