A248436 - cp's OEIS frontend

A248436 Number of length 3+2 0..n arrays with every three consecutive terms having the sum of some two elements equal to twice the third.

n	a(n)
1	2
2	9
3	24
4	69
5	118
6	185
7	252
8	357
9	470
10	593
11	716
12	881
13	1046
14	1217
15	1400
16	1621
17	1842
18	2081
19	2320
20	2593
21	2874
22	3161
23	3448
24	3785
25	4126
26	4473
27	4828
28	5213
29	5598
30	6005
31	6412
32	6857
33	7310
34	7769
35	8232
36	8737
37	9242
38	9753
39	10272
40	10833
41	11394
42	11973
43	12552
44	13161
45	13782

[2, 9, 24, 69, 118, 185, 252, 357, 470, 593, 716, 881, 1046, 1217, 1400, 1621, 1842, 2081, 2320, 2593, 2874, 3161, 3448, 3785, 4126, 4473, 4828, 5213, 5598, 6005, 6412, 6857, 7310, 7769, 8232, 8737, 9242, 9753, 10272, 10833, 11394, 11973, 12552, 13161, 13782]

cp's OEIS Frontend

A248436 Number of length 3+2 0..n arrays with every three consecutive terms having the sum of some two elements equal to twice the third.

Table of values

List of values