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A348640
Denominators of the remainders in the greedy Egyptian fraction representation of 1 with square denominators (A348626).
1
1, 4, 2, 4, 36, 36, 1764, 2352, 115248, 416333400, 107225418169800, 562904175532925098845000, 1857180475556752726157213892231405000, 424594887903818740281781489141947299544299873193026842805000, 27616236678198713245845367246922973802897093015095664467139174240964043973815461112656369429045000
OFFSET
0,2
COMMENTS
a(n) divides LCM( A348626(1), ..., A348626(n) )^2.
FORMULA
a(n) = denominator of 1 - Sum_{k=1..n} 1/A348626(k)^2.
PROG
(PARI) s=1; for(n=1, 20, print1(denominator(s), ", "); t=sqrtint(floor(1/s))+1; s-=1/t^2);
CROSSREFS
Cf. A000058, A348626, A348641 (numerators).
Sequence in context: A168613 A248251 A139809 * A094099 A107046 A267184
KEYWORD
nonn,frac
AUTHOR
Max Alekseyev, Oct 26 2021
STATUS
approved