A214825 - cp's OEIS frontend

A214825 a(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 1, a(1) = a(2) = 3.

n	a(n)
0	1
1	3
2	3
3	7
4	13
5	23
6	43
7	79
8	145
9	267
10	491
11	903
12	1661
13	3055
14	5619
15	10335
16	19009
17	34963
18	64307
19	118279
20	217549
21	400135
22	735963
23	1353647
24	2489745
25	4579355
26	8422747
27	15491847
28	28493949
29	52408543
30	96394339
31	177296831
32	326099713
33	599790883
34	1103187427

[1, 3, 3, 7, 13, 23, 43, 79, 145, 267, 491, 903, 1661, 3055, 5619, 10335, 19009, 34963, 64307, 118279, 217549, 400135, 735963, 1353647, 2489745, 4579355, 8422747, 15491847, 28493949, 52408543, 96394339, 177296831, 326099713, 599790883, 1103187427]

cp's OEIS Frontend

A214825 a(n) = a(n-1) + a(n-2) + a(n-3), with a(0) = 1, a(1) = a(2) = 3.

Table of values

List of values