A278110 a(n) = Product_{k=1..A056811(n)} A000040(k)^A278109(n,k).

1, 1, 1, 2, 2, 2, 2, 4, 12, 12, 12, 24, 24, 24, 24, 48, 48, 144, 144, 288, 288, 288, 288, 576, 2880, 2880, 8640, 17280, 17280, 17280, 17280, 34560, 34560, 34560, 34560, 207360, 207360, 207360, 207360, 414720, 414720, 414720, 414720, 829440, 2488320

Offset

1,4

Links

Jason Kimberley, Table of n, a(n) for n = 1..1000

Prog

(Magma) [&*[Integers()|p^(n div p^2):p in PrimesUpTo(Isqrt(n))]:n in[1..45]];

Crossrefs

Cf. A033833, A181817, A278108, A278109.

Sequence in context: A147751 A360315 A045948 * A248763 A233585 A103512

Adjacent sequences: A278107 A278108 A278109 * A278111 A278112 A278113

Keyword

nonn,easy

Author

Jason Kimberley, Feb 02 2017

Status

approved