A133405 - cp's OEIS frontend

A133405 a(n) = 3a(n-1) - a(n-3) + 3a(n-4), with initial values 0,0,0,1.

n	a(n)
0	0
1	0
2	0
3	1
4	3
5	9
6	26
7	78
8	234
9	703
10	2109
11	6327
12	18980
13	56940
14	170820
15	512461
16	1537383
17	4612149
18	13836446
19	41509338
20	124528014
21	373584043
22	1120752129
23	3362256387
24	10086769160
25	30260307480
26	90780922440
27	272342767321
28	817028301963
29	2451084905889
30	7353254717666

[0, 0, 0, 1, 3, 9, 26, 78, 234, 703, 2109, 6327, 18980, 56940, 170820, 512461, 1537383, 4612149, 13836446, 41509338, 124528014, 373584043, 1120752129, 3362256387, 10086769160, 30260307480, 90780922440, 272342767321, 817028301963, 2451084905889, 7353254717666]

cp's OEIS Frontend

A133405 a(n) = 3a(n-1) - a(n-3) + 3a(n-4), with initial values 0,0,0,1.

Table of values

List of values

cp's OEIS Frontend

A133405 a(n) = 3*a(n-1) - a(n-3) + 3*a(n-4), with initial values 0,0,0,1.

Table of values

List of values

A133405 a(n) = 3a(n-1) - a(n-3) + 3a(n-4), with initial values 0,0,0,1.