A165992 - cp's OEIS frontend

A165992 Triangle read by rows: T(n,0) = 3^n, T(n,k) = T(n,k-1) + T(n-1,k) for 0 < k < n, and T(n,n) = T(n,n-1).

n	a(n)
0	1
1	3
2	3
3	9
4	12
5	12
6	27
7	39
8	51
9	51
10	81
11	120
12	171
13	222
14	222
15	243
16	363
17	534
18	756
19	978
20	978
21	729
22	1092
23	1626
24	2382
25	3360
26	4338
27	4338
28	2187
29	3279
30	4905
31	7287
32	10647
33	14985
34	19323
35	19323
36	6561
37	9840
38	14745
39	22032
40	32679
41	47664
42	66987
43	86310
44	86310
45	19683

[1, 3, 3, 9, 12, 12, 27, 39, 51, 51, 81, 120, 171, 222, 222, 243, 363, 534, 756, 978, 978, 729, 1092, 1626, 2382, 3360, 4338, 4338, 2187, 3279, 4905, 7287, 10647, 14985, 19323, 19323, 6561, 9840, 14745, 22032, 32679, 47664, 66987, 86310, 86310, 19683]

cp's OEIS Frontend

A165992 Triangle read by rows: T(n,0) = 3^n, T(n,k) = T(n,k-1) + T(n-1,k) for 0 < k < n, and T(n,n) = T(n,n-1).

Table of values

List of values