A375522 - cp's OEIS frontend

A375522 a(n) is the denominator of Sum_{k = 1..n} 1 / (k*A375781(k)).

n	a(n)
0	1
1	2
2	6
3	15
4	105
5	1155
6	1336335
7	892896284280
8	398631887241408183843480
9	19863422690705846097977473796903171171326157280
10	14091270035344566960604487534521565339065390839583445590118556137472614250693240040301050080

[1, 2, 6, 15, 105, 1155, 1336335, 892896284280, 398631887241408183843480, 19863422690705846097977473796903171171326157280, 14091270035344566960604487534521565339065390839583445590118556137472614250693240040301050080]

cp's OEIS Frontend

A375522 a(n) is the denominator of Sum_{k = 1..n} 1 / (k*A375781(k)).

Table of values

List of values