A134940 - cp's OEIS frontend

A134940 Define f(n) by e(n+1) = e(n) + 3^{n+1} - 1 + 2*f(n), where the rational numbers e(n) are defined in A134939; then a(n) is the numerator of f(n).

n	a(n)
0	0
1	17
2	424
3	7889
4	131920
5	2099537
6	32570104
7	498191249
8	7559339680
9	114166849937
10	1719485965384
11	25855100073809
12	388391603257840
13	5830958998038737
14	87510144649440664
15	1313063982494679569
16	19699665930299694400
17	295528344080575921937
18	4433225354293155251944

[0, 17, 424, 7889, 131920, 2099537, 32570104, 498191249, 7559339680, 114166849937, 1719485965384, 25855100073809, 388391603257840, 5830958998038737, 87510144649440664, 1313063982494679569, 19699665930299694400, 295528344080575921937, 4433225354293155251944]

cp's OEIS Frontend

A134940 Define f(n) by e(n+1) = e(n) + 3^{n+1} - 1 + 2*f(n), where the rational numbers e(n) are defined in A134939; then a(n) is the numerator of f(n).

Table of values

List of values