A134364 - OEIS

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A134364

a(n) = Product_{k=1..A061395(n)} prime(k)^|A134363(n,k)| for n >= 2; a(1) = 1.

1, 2, 3, 4, 5, 2, 7, 8, 9, 30, 11, 12, 13, 42, 3, 16, 17, 6, 19, 180, 105, 66, 23, 72, 25, 78, 27, 252, 29, 2, 31, 32, 165, 102, 5, 4, 37, 114, 195, 1080, 41, 70, 43, 396, 45, 138, 47, 432, 49, 150, 255, 468, 53, 18, 385, 1512, 285, 174, 59, 12, 61, 186, 1575

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..63.

EXAMPLE

Row 20 of A134363 is {2,-2,1} because 20 = 2^2 * 3^(2-2) * 5^(2-2+1) = 2^2 * 3^0 * 5^1. So a(20) = 2^|2| * 3^|-2| * 5^|1| = 180.

CROSSREFS

Cf. A061395, A134363.

Sequence in context: A348990 A348968 A333696 * A338579 A308830 A343252

Adjacent sequences: A134361 A134362 A134363 * A134365 A134366 A134367

KEYWORD

nonn

AUTHOR

Leroy Quet, Oct 22 2007

EXTENSIONS

More terms from Jinyuan Wang, Aug 10 2021

STATUS

approved