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A280714 Partial products of A055067. 1
1, 1, 2, 6, 144, 2880, 2073600, 1306368000, 17557585920000, 637129677864960000, 2312016175036366848000000, 640890883720080890265600000000, 306987758727332698566646824960000000000, 136544225638605874463902854662848512000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

A055067(n) = the product of non-divisors of n.

LINKS

Table of n, a(n) for n=1..14.

FORMULA

a(n) = Product_{i=1..n} A055067(i).

MATHEMATICA

FoldList[#1 #2 &, Table[Times @@ Complement[Range@ n, Divisors@ n], {n, 14}]] (* Michael De Vlieger, Jan 09 2017 *)

PROG

(MAGMA) [&*[Factorial(k) / &*[d: d in Divisors(k): k in [1..n]]: n in [1..100]]

CROSSREFS

Cf. A055067, A280713.

Sequence in context: A280821 A145143 A280378 * A164764 A333444 A274986

Adjacent sequences:  A280711 A280712 A280713 * A280715 A280716 A280717

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Jan 07 2017

STATUS

approved

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Last modified August 3 08:10 EDT 2020. Contains 336197 sequences. (Running on oeis4.)