A323848 - cp's OEIS frontend

A323848 Irregular triangle read by rows: T(n,d) (n >= 1, d <= n-1 for n>1) = number of n X n integer-valued matrices M such that M_{1,1}=0, M_{n,n}=d, M_{(i+1),j} = M_{i,j} + (0 or 1), M_{i,(j+1)} = M_{i,j} + (0 or 1), and M_{(i+1),(j+1)} = M_{i,j} + (0 or 1).

n	a(n)
1	0
2	4
3	18
4	25
5	68
6	386
7	256
8	250
9	4657
10	12200
11	4356
12	922
13	54219
14	432842
15	608993
16	123904
17	3430
18	642815
19	14697256
20	60650883
21	49489706
22	5909761
23	12868
24	7852836
25	514608568
26	5713126349
27	13458882036
28	6648891794
29	473497600
30	48618
31	98755951
32	18971384148
33	558848240787
34	3406380649146
35	4857082197177
36	1489334202216
37	63799687396

[0, 4, 18, 25, 68, 386, 256, 250, 4657, 12200, 4356, 922, 54219, 432842, 608993, 123904, 3430, 642815, 14697256, 60650883, 49489706, 5909761, 12868, 7852836, 514608568, 5713126349, 13458882036, 6648891794, 473497600, 48618, 98755951, 18971384148, 558848240787, 3406380649146, 4857082197177, 1489334202216, 63799687396]

cp's OEIS Frontend

A323848 Irregular triangle read by rows: T(n,d) (n >= 1, d <= n-1 for n>1) = number of n X n integer-valued matrices M such that M_{1,1}=0, M_{n,n}=d, M_{(i+1),j} = M_{i,j} + (0 or 1), M_{i,(j+1)} = M_{i,j} + (0 or 1), and M_{(i+1),(j+1)} = M_{i,j} + (0 or 1).

Table of values

List of values