A376177 - cp's OEIS frontend

A376177 Triangle, read by rows, where T(n,k) = T(n-1,k-1) + 2*T(n,k-1) when k > 0, else T(n,0) = T(n-1,n-1) when n > 0, with T(0,0) = 1.

n	a(n)
0	1
1	1
2	3
3	3
4	7
5	17
6	17
7	37
8	81
9	179
10	179
11	375
12	787
13	1655
14	3489
15	3489
16	7157
17	14689
18	30165
19	61985
20	127459
21	127459
22	258407
23	523971
24	1062631
25	2155427
26	4372839
27	8873137
28	8873137
29	17873733
30	36005873
31	72535717
32	146134065
33	294423557
34	593219953
35	1195313043
36	1195313043
37	2399499223
38	4816872179
39	9669750231
40	19412036179
41	38970206423
42	78234836403
43	157062892759
44	315321098561
45	315321098561

[1, 1, 3, 3, 7, 17, 17, 37, 81, 179, 179, 375, 787, 1655, 3489, 3489, 7157, 14689, 30165, 61985, 127459, 127459, 258407, 523971, 1062631, 2155427, 4372839, 8873137, 8873137, 17873733, 36005873, 72535717, 146134065, 294423557, 593219953, 1195313043, 1195313043, 2399499223, 4816872179, 9669750231, 19412036179, 38970206423, 78234836403, 157062892759, 315321098561, 315321098561]

cp's OEIS Frontend

A376177 Triangle, read by rows, where T(n,k) = T(n-1,k-1) + 2*T(n,k-1) when k > 0, else T(n,0) = T(n-1,n-1) when n > 0, with T(0,0) = 1.

Table of values

List of values