A290909 - cp's OEIS frontend

A290909 p-INVERT of the positive integers, where p(S) = 1 - 5*S^2.

n	a(n)
0	0
1	5
2	20
3	75
4	300
5	1200
6	4780
7	19045
8	75900
9	302475
10	1205400
11	4803680
12	19143320
13	76288725
14	304020900
15	1211564475
16	4828248580
17	19241224720
18	76678887300
19	305575754325
20	1217760780300
21	4852941691355
22	19339630115120
23	77071046136000
24	307138560414000

[0, 5, 20, 75, 300, 1200, 4780, 19045, 75900, 302475, 1205400, 4803680, 19143320, 76288725, 304020900, 1211564475, 4828248580, 19241224720, 76678887300, 305575754325, 1217760780300, 4852941691355, 19339630115120, 77071046136000, 307138560414000]

cp's OEIS Frontend

A290909 p-INVERT of the positive integers, where p(S) = 1 - 5*S^2.

Table of values

List of values