A062757 - cp's OEIS frontend

A062757 Denominator of sum of first n terms of the series 1/15 + 1/63 + 1/80 ... in which the denominators are perfect squares - 1 which are simultaneously other powers, e.g. a(1) = 15 because 16 = 4^2 = 2^4, a perfect square that is also a fourth power; hence 16-1 = 15 qualifies as a term.

n	a(n)
1	15
2	315
3	5040
4	85680
5	278460
6	42840
7	14608440
8	540512280
9	10810245600
10	46844397600
11	480155075400
12	145486987846200
13	17749412517236400
14	5916470839078800
15	10769949084069775600
16	312328523438023492400

[15, 315, 5040, 85680, 278460, 42840, 14608440, 540512280, 10810245600, 46844397600, 480155075400, 145486987846200, 17749412517236400, 5916470839078800, 10769949084069775600, 312328523438023492400]

cp's OEIS Frontend

A062757 Denominator of sum of first n terms of the series 1/15 + 1/63 + 1/80 ... in which the denominators are perfect squares - 1 which are simultaneously other powers, e.g. a(1) = 15 because 16 = 4^2 = 2^4, a perfect square that is also a fourth power; hence 16-1 = 15 qualifies as a term.

Table of values

List of values