A025273 - cp's OEIS frontend

A025273 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, starting 1,0,1,1.

n	a(n)
1	1
2	0
3	1
4	1
5	2
6	5
7	12
8	29
9	72
10	182
11	466
12	1207
13	3158
14	8334
15	22158
16	59299
17	159614
18	431838
19	1173710
20	3203244
21	8774780
22	24118522
23	66497316
24	183858411
25	509670494
26	1416231616
27	3944027402
28	11006186760
29	30772507128
30	86191006746
31	241815195292
32	679488418879

[1, 0, 1, 1, 2, 5, 12, 29, 72, 182, 466, 1207, 3158, 8334, 22158, 59299, 159614, 431838, 1173710, 3203244, 8774780, 24118522, 66497316, 183858411, 509670494, 1416231616, 3944027402, 11006186760, 30772507128, 86191006746, 241815195292, 679488418879]

cp's OEIS Frontend

A025273 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, starting 1,0,1,1.

Table of values

List of values

cp's OEIS Frontend

A025273 a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 5, starting 1,0,1,1.

Table of values

List of values

A025273 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, starting 1,0,1,1.