A078012 - cp's OEIS frontend

A078012 a(n) = a(n-1) + a(n-3) for n >= 3, with a(0) = 1, a(1) = a(2) = 0. This recurrence can also be used to define a(n) for n < 0.

n	a(n)
0	1
1	0
2	0
3	1
4	1
5	1
6	2
7	3
8	4
9	6
10	9
11	13
12	19
13	28
14	41
15	60
16	88
17	129
18	189
19	277
20	406
21	595
22	872
23	1278
24	1873
25	2745
26	4023
27	5896
28	8641
29	12664
30	18560
31	27201
32	39865
33	58425
34	85626
35	125491
36	183916
37	269542
38	395033
39	578949
40	848491
41	1243524
42	1822473
43	2670964
44	3914488
45	5736961
46	8407925

[1, 0, 0, 1, 1, 1, 2, 3, 4, 6, 9, 13, 19, 28, 41, 60, 88, 129, 189, 277, 406, 595, 872, 1278, 1873, 2745, 4023, 5896, 8641, 12664, 18560, 27201, 39865, 58425, 85626, 125491, 183916, 269542, 395033, 578949, 848491, 1243524, 1822473, 2670964, 3914488, 5736961, 8407925]

cp's OEIS Frontend

A078012 a(n) = a(n-1) + a(n-3) for n >= 3, with a(0) = 1, a(1) = a(2) = 0. This recurrence can also be used to define a(n) for n < 0.

Table of values

List of values