A001644 - cp's OEIS frontend

A001644 a(n) = a(n-1) + a(n-2) + a(n-3), a(0)=3, a(1)=1, a(2)=3.

n	a(n)
0	3
1	1
2	3
3	7
4	11
5	21
6	39
7	71
8	131
9	241
10	443
11	815
12	1499
13	2757
14	5071
15	9327
16	17155
17	31553
18	58035
19	106743
20	196331
21	361109
22	664183
23	1221623
24	2246915
25	4132721
26	7601259
27	13980895
28	25714875
29	47297029
30	86992799
31	160004703
32	294294531
33	541292033
34	995591267
35	1831177831

[3, 1, 3, 7, 11, 21, 39, 71, 131, 241, 443, 815, 1499, 2757, 5071, 9327, 17155, 31553, 58035, 106743, 196331, 361109, 664183, 1221623, 2246915, 4132721, 7601259, 13980895, 25714875, 47297029, 86992799, 160004703, 294294531, 541292033, 995591267, 1831177831]

cp's OEIS Frontend

A001644 a(n) = a(n-1) + a(n-2) + a(n-3), a(0)=3, a(1)=1, a(2)=3.

Table of values

List of values