A275277 - cp's OEIS frontend

A275277 a(n) = a(n-1) + 3a(n-2) + 3a(n-3) + a(n-4), where a(0) = a(1) = a(2) = a(3) = 1.

n	a(n)
0	1
1	1
2	1
3	1
4	8
5	15
6	43
7	113
8	295
9	778
10	2045
11	5377
12	14141
13	37185
14	97784
15	257139
16	676187
17	1778141
18	4675903
19	12296026
20	32334345
21	85028273
22	223595289
23	587979169
24	1546184200
25	4065935847
26	10692021243
27	28116360553
28	73936416023
29	194427497258
30	511277848229

[1, 1, 1, 1, 8, 15, 43, 113, 295, 778, 2045, 5377, 14141, 37185, 97784, 257139, 676187, 1778141, 4675903, 12296026, 32334345, 85028273, 223595289, 587979169, 1546184200, 4065935847, 10692021243, 28116360553, 73936416023, 194427497258, 511277848229]

cp's OEIS Frontend

A275277 a(n) = a(n-1) + 3a(n-2) + 3a(n-3) + a(n-4), where a(0) = a(1) = a(2) = a(3) = 1.

Table of values

List of values

cp's OEIS Frontend

A275277 a(n) = a(n-1) + 3*a(n-2) + 3*a(n-3) + a(n-4), where a(0) = a(1) = a(2) = a(3) = 1.

Table of values

List of values

A275277 a(n) = a(n-1) + 3a(n-2) + 3a(n-3) + a(n-4), where a(0) = a(1) = a(2) = a(3) = 1.