A287381 - cp's OEIS frontend

A287381 a(n) = a(n-1) + 2*a(n-2) - a(n-3), where a(0) = 2, a(1) = 4, a(2) = 7.

n	a(n)
0	2
1	4
2	7
3	13
4	23
5	42
6	75
7	136
8	244
9	441
10	793
11	1431
12	2576
13	4645
14	8366
15	15080
16	27167
17	48961
18	88215
19	158970
20	286439
21	516164
22	930072
23	1675961
24	3019941
25	5441791
26	9805712
27	17669353
28	31838986
29	57371980
30	103380599
31	186285573
32	335674791
33	604865338
34	1089929347

[2, 4, 7, 13, 23, 42, 75, 136, 244, 441, 793, 1431, 2576, 4645, 8366, 15080, 27167, 48961, 88215, 158970, 286439, 516164, 930072, 1675961, 3019941, 5441791, 9805712, 17669353, 31838986, 57371980, 103380599, 186285573, 335674791, 604865338, 1089929347]

cp's OEIS Frontend

A287381 a(n) = a(n-1) + 2*a(n-2) - a(n-3), where a(0) = 2, a(1) = 4, a(2) = 7.

Table of values

List of values