A294381 - cp's OEIS frontend

A294381 Solution of the complementary equation a(n) = a(n-1)*b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.

n	a(n)
0	1
1	3
2	6
3	24
4	120
5	840
6	6720
7	60480
8	604800
9	6652800
10	79833600
11	1037836800
12	14529715200
13	217945728000
14	3487131648000
15	59281238016000
16	1067062284288000
17	20274183401472000
18	405483668029440000
19	8515157028618240000
20	187333454629601280000
21	4308669456480829440000
22	107716736412020736000000

[1, 3, 6, 24, 120, 840, 6720, 60480, 604800, 6652800, 79833600, 1037836800, 14529715200, 217945728000, 3487131648000, 59281238016000, 1067062284288000, 20274183401472000, 405483668029440000, 8515157028618240000, 187333454629601280000, 4308669456480829440000, 107716736412020736000000]

cp's OEIS Frontend

A294381 Solution of the complementary equation a(n) = a(n-1)*b(n-2), where a(0) = 1, a(1) = 3, b(0) = 2, b(1) = 4.

Table of values

List of values