A383074 a(n) = floor(A066206(n)/A066205(n)).

1, 2, 2, 2, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, 16

Offset

1,2

Links

Table of n, a(n) for n=1..72.

Example

a(1) = floor(3/2) = 1; a(2) = floor(3*7/(2*5)) = 2; a(3) = floor(3*7*13/(2*5*11)) = 2.

Mathematica

Table[Floor[Product[Prime[2 k], {k, 1, n}]/Product[Prime[2 k - 1], {k, 1, n}]], {n, 1, 200}]

Crossrefs

Cf. A000040, A066205, A066206.

Sequence in context: A369057 A342248 A357604 * A090702 A029124 A113512

Adjacent sequences: A383071 A383072 A383073 * A383075 A383076 A383077

Keyword

nonn

Author

Clark Kimberling, Apr 19 2025

Status

approved