A363442 - cp's OEIS frontend

A363442 G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(x^k) * (3*x)^k/k ).

n	a(n)
0	1
1	3
2	9
3	54
4	270
5	1620
6	9828
7	61884
8	397062
9	2597508
10	17232831
11	115722918
12	784996434
13	5371325217
14	37029240315
15	256948639344
16	1793271890988
17	12579466538187
18	88645665923244
19	627235978623318
20	4454619888380355
21	31743030458459169
22	226890102674671245

[1, 3, 9, 54, 270, 1620, 9828, 61884, 397062, 2597508, 17232831, 115722918, 784996434, 5371325217, 37029240315, 256948639344, 1793271890988, 12579466538187, 88645665923244, 627235978623318, 4454619888380355, 31743030458459169, 226890102674671245]

cp's OEIS Frontend

A363442 G.f. satisfies A(x) = exp( Sum_{k>=1} (-1)^(k+1) * A(x^k) * (3*x)^k/k ).

Table of values

List of values