A339236 - cp's OEIS frontend

A339236 Irregular triangle of incomplete Leonardo numbers read by rows. T(n, k) = 2*(Sum_{j=0..k} binomial(n-j, j)) - 1, for n>=0 and 0<=k<=floor(n/2).

n	a(n)
0	1
1	1
2	1
3	3
4	1
5	5
6	1
7	7
8	9
9	1
10	9
11	15
12	1
13	11
14	23
15	25
16	1
17	13
18	33
19	41
20	1
21	15
22	45
23	65
24	67
25	1
26	17
27	59
28	99
29	109
30	1
31	19
32	75
33	145
34	175
35	177
36	1
37	21
38	93
39	205
40	275
41	287
42	1
43	23
44	113
45	281
46	421
47	463
48	465
49	1
50	25
51	135
52	375
53	627
54	739
55	753
56	1
57	27
58	159
59	489
60	909
61	1161
62	1217
63	1219

[1, 1, 1, 3, 1, 5, 1, 7, 9, 1, 9, 15, 1, 11, 23, 25, 1, 13, 33, 41, 1, 15, 45, 65, 67, 1, 17, 59, 99, 109, 1, 19, 75, 145, 175, 177, 1, 21, 93, 205, 275, 287, 1, 23, 113, 281, 421, 463, 465, 1, 25, 135, 375, 627, 739, 753, 1, 27, 159, 489, 909, 1161, 1217, 1219]

cp's OEIS Frontend

A339236 Irregular triangle of incomplete Leonardo numbers read by rows. T(n, k) = 2*(Sum_{j=0..k} binomial(n-j, j)) - 1, for n>=0 and 0<=k<=floor(n/2).

Table of values

List of values