A336858 - cp's OEIS frontend

A336858 Triangle read by rows: T(n,k) = T(n,k-1) + T(n-1, k) + T(n-1,k-1) with T(n,0) = T(n, n) = 1 (n >= 0, 0 <= k <= n).

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	1
6	1
7	5
8	9
9	1
10	1
11	7
12	21
13	31
14	1
15	1
16	9
17	37
18	89
19	121
20	1
21	1
22	11
23	57
24	183
25	393
26	515
27	1
28	1
29	13
30	81
31	321
32	897
33	1805
34	2321
35	1
36	1
37	15
38	109
39	511
40	1729
41	4431
42	8557
43	10879
44	1
45	1
46	17
47	141
48	761
49	3001
50	9161
51	22149
52	41585
53	52465
54	1
55	1
56	19
57	177
58	1079
59	4841
60	17003
61	48313
62	112047
63	206097
64	258563
65	1

[1, 1, 1, 1, 3, 1, 1, 5, 9, 1, 1, 7, 21, 31, 1, 1, 9, 37, 89, 121, 1, 1, 11, 57, 183, 393, 515, 1, 1, 13, 81, 321, 897, 1805, 2321, 1, 1, 15, 109, 511, 1729, 4431, 8557, 10879, 1, 1, 17, 141, 761, 3001, 9161, 22149, 41585, 52465, 1, 1, 19, 177, 1079, 4841, 17003, 48313, 112047, 206097, 258563, 1]

cp's OEIS Frontend

A336858 Triangle read by rows: T(n,k) = T(n,k-1) + T(n-1, k) + T(n-1,k-1) with T(n,0) = T(n, n) = 1 (n >= 0, 0 <= k <= n).

Table of values

List of values