A107265 - cp's OEIS frontend

A107265 Expansion of (1-5x-sqrt((1-5x)^2-45x^2))/(25x^2).

n	a(n)
0	1
1	5
2	30
3	200
4	1425
5	10625
6	81875
7	646875
8	5211875
9	42659375
10	353725000
11	2965031250
12	25083859375
13	213894609375
14	1836516718750
15	15863968750000
16	137767560546875
17	1202116083984375
18	10534061644531250
19	92664360625000000
20	817975366904296875
21	7243402948779296875

[1, 5, 30, 200, 1425, 10625, 81875, 646875, 5211875, 42659375, 353725000, 2965031250, 25083859375, 213894609375, 1836516718750, 15863968750000, 137767560546875, 1202116083984375, 10534061644531250, 92664360625000000, 817975366904296875, 7243402948779296875]

cp's OEIS Frontend

A107265 Expansion of (1-5x-sqrt((1-5x)^2-45x^2))/(25x^2).

Table of values

List of values

cp's OEIS Frontend

A107265 Expansion of (1-5*x-sqrt((1-5*x)^2-4*5*x^2))/(2*5*x^2).

Table of values

List of values

A107265 Expansion of (1-5x-sqrt((1-5x)^2-45x^2))/(25x^2).