A303952 - cp's OEIS frontend

A303952 a(n) is the number of monic polynomials P(z) of degree n over the complex numbers such that P(z) divides P(z^2).

n	a(n)
0	1
1	2
2	5
3	17
4	69
5	302
6	1367
7	6302
8	29401
9	138356
10	655425
11	3121439
12	14930541
13	71675840
14	345148893
15	1666432817
16	8064278289
17	39103576700
18	189949958333
19	924163714217
20	4502711570989
21	21966152501240
22	107284324830303

[1, 2, 5, 17, 69, 302, 1367, 6302, 29401, 138356, 655425, 3121439, 14930541, 71675840, 345148893, 1666432817, 8064278289, 39103576700, 189949958333, 924163714217, 4502711570989, 21966152501240, 107284324830303]

cp's OEIS Frontend

A303952 a(n) is the number of monic polynomials P(z) of degree n over the complex numbers such that P(z) divides P(z^2).

Table of values

List of values