A323849 - cp's OEIS frontend

A323849 Irregular triangle read by rows: T(n,d) (n >= 1, 0 <= d <= 2n-2) = number of n X n integer-valued matrices M such that M_{1,1}=0, M_{n,n}=d, and M_{(i+1),j} = M_{i,j} + (0 or 1), M_{i,(j+1)} = M_{i,j} + (0 or 1).

n	a(n)
1	1
2	1
3	4
4	1
5	1
6	18
7	44
8	18
9	1
10	1
11	68
12	615
13	1236
14	615
15	68
16	1
17	1
18	250
19	7313
20	46812
21	84910
22	46812
23	7313
24	250
25	1
26	1
27	922
28	85801
29	1592348
30	8241540
31	14024408
32	8241540
33	1592348
34	85801
35	922
36	1
37	1
38	3430
39	1030330
40	54926890
41	759337545
42	3397542544
43	5530983756
44	3397542544
45	759337545
46	54926890
47	1030330
48	3430
49	1

[1, 1, 4, 1, 1, 18, 44, 18, 1, 1, 68, 615, 1236, 615, 68, 1, 1, 250, 7313, 46812, 84910, 46812, 7313, 250, 1, 1, 922, 85801, 1592348, 8241540, 14024408, 8241540, 1592348, 85801, 922, 1, 1, 3430, 1030330, 54926890, 759337545, 3397542544, 5530983756, 3397542544, 759337545, 54926890, 1030330, 3430, 1]

cp's OEIS Frontend

A323849 Irregular triangle read by rows: T(n,d) (n >= 1, 0 <= d <= 2n-2) = number of n X n integer-valued matrices M such that M_{1,1}=0, M_{n,n}=d, and M_{(i+1),j} = M_{i,j} + (0 or 1), M_{i,(j+1)} = M_{i,j} + (0 or 1).

Table of values

List of values