A194998 - cp's OEIS frontend

A194998 T(n,k)=Number of lower triangles of an n X n 0..k array with each element differing from all of its horizontal and vertical neighbors by one.

n	a(n)
1	2
2	3
3	2
4	4
5	6
6	2
7	5
8	10
9	20
10	2
11	6
12	14
13	42
14	80
15	2
16	7
17	18
18	66
19	248
20	576
21	2
22	8
23	22
24	90
25	458
26	2290
27	4608
28	2
29	9
30	26
31	114
32	672
33	4990
34	31042
35	69632
36	2
37	10
38	30
39	138
40	888
41	7858
42	81014
43	641376
44	1114112
45	2
46	11
47	34
48	162
49	1104
50	10804
51	138956
52	2059822
53	19753266
54	34603008
55	2
56	12
57	38

[2, 3, 2, 4, 6, 2, 5, 10, 20, 2, 6, 14, 42, 80, 2, 7, 18, 66, 248, 576, 2, 8, 22, 90, 458, 2290, 4608, 2, 9, 26, 114, 672, 4990, 31042, 69632, 2, 10, 30, 138, 888, 7858, 81014, 641376, 1114112, 2, 11, 34, 162, 1104, 10804, 138956, 2059822, 19753266, 34603008, 2, 12, 38]

cp's OEIS Frontend

A194998 T(n,k)=Number of lower triangles of an n X n 0..k array with each element differing from all of its horizontal and vertical neighbors by one.

Table of values

List of values