A222589 - cp's OEIS frontend

A222589 G.f. satisfies: A(x) = Sum_{n>=0} x^n(1 + nx)^n * A(x)^n / (1 + xA(x) + nx^2*A(x))^n.

n	a(n)
0	1
1	1
2	2
3	5
4	14
5	41
6	128
7	409
8	1355
9	4564
10	15728
11	54904
12	194740
13	698042
14	2532483
15	9270351
16	34268276
17	127677731
18	479723132
19	1815553953
20	6923744832
21	26587139445
22	102838915279
23	400513959602
24	1571152132075
25	6206954038519
26	24705172805012
27	99071049959707
28	400475021255313

[1, 1, 2, 5, 14, 41, 128, 409, 1355, 4564, 15728, 54904, 194740, 698042, 2532483, 9270351, 34268276, 127677731, 479723132, 1815553953, 6923744832, 26587139445, 102838915279, 400513959602, 1571152132075, 6206954038519, 24705172805012, 99071049959707, 400475021255313]

cp's OEIS Frontend

A222589 G.f. satisfies: A(x) = Sum_{n>=0} x^n(1 + nx)^n * A(x)^n / (1 + xA(x) + nx^2*A(x))^n.

Table of values

List of values

cp's OEIS Frontend

A222589 G.f. satisfies: A(x) = Sum_{n>=0} x^n*(1 + n*x)^n * A(x)^n / (1 + x*A(x) + n*x^2*A(x))^n.

Table of values

List of values

A222589 G.f. satisfies: A(x) = Sum_{n>=0} x^n(1 + nx)^n * A(x)^n / (1 + xA(x) + nx^2*A(x))^n.