A248428 - cp's OEIS frontend

A248428 Number of length n+2 0..3 arrays with every three consecutive terms having the sum of some two elements equal to twice the third.

n	a(n)
1	16
2	20
3	24
4	28
5	36
6	44
7	52
8	68
9	84
10	100
11	132
12	164
13	196
14	260
15	324
16	388
17	516
18	644
19	772
20	1028
21	1284
22	1540
23	2052
24	2564
25	3076
26	4100
27	5124
28	6148
29	8196
30	10244
31	12292
32	16388
33	20484
34	24580
35	32772
36	40964
37	49156
38	65540
39	81924
40	98308
41	131076
42	163844
43	196612
44	262148

[16, 20, 24, 28, 36, 44, 52, 68, 84, 100, 132, 164, 196, 260, 324, 388, 516, 644, 772, 1028, 1284, 1540, 2052, 2564, 3076, 4100, 5124, 6148, 8196, 10244, 12292, 16388, 20484, 24580, 32772, 40964, 49156, 65540, 81924, 98308, 131076, 163844, 196612, 262148]

cp's OEIS Frontend

A248428 Number of length n+2 0..3 arrays with every three consecutive terms having the sum of some two elements equal to twice the third.

Table of values

List of values