A305837 - cp's OEIS frontend

A305837 Triangle read by rows: T(0,0) = 1; T(n,k) = 5*T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2); T(n,k)=0 for n or k < 0.

n	a(n)
0	1
1	5
2	25
3	1
4	125
5	10
6	625
7	75
8	1
9	3125
10	500
11	15
12	15625
13	3125
14	150
15	1
16	78125
17	18750
18	1250
19	20
20	390625
21	109375
22	9375
23	250
24	1
25	1953125
26	625000
27	65625
28	2500
29	25
30	9765625
31	3515625
32	437500
33	21875
34	375
35	1
36	48828125
37	19531250
38	2812500
39	175000
40	4375
41	30
42	244140625
43	107421875
44	17578125
45	1312500
46	43750
47	525
48	1

[1, 5, 25, 1, 125, 10, 625, 75, 1, 3125, 500, 15, 15625, 3125, 150, 1, 78125, 18750, 1250, 20, 390625, 109375, 9375, 250, 1, 1953125, 625000, 65625, 2500, 25, 9765625, 3515625, 437500, 21875, 375, 1, 48828125, 19531250, 2812500, 175000, 4375, 30, 244140625, 107421875, 17578125, 1312500, 43750, 525, 1]

cp's OEIS Frontend

A305837 Triangle read by rows: T(0,0) = 1; T(n,k) = 5*T(n-1,k) + T(n-2,k-1) for k = 0..floor(n/2); T(n,k)=0 for n or k < 0.

Table of values

List of values