[seqfan] MOA-Pi(n)
zbi74583.boat at orange.zero.jp
zbi74583.boat at orange.zero.jp
Thu Oct 23 04:57:42 CEST 2014
Hi,Seqfans
MOA-Pi(n) is an abbreviation of Minimal Ordinal Amicable Number whose the
smallest prime factor is Pi(n)
The sequence of MOA-Pi(n) is the following
220,12285,42262694537514864075544955198125,5886188086733439782543275982434512191053242121061614852194076089917945892521796133874953922317186513706331426376543578708245196142712524487266825790283722236478446468599374184773242004785197367
284,14595,42405817271188606697466971841875,5952325031528197532908930768754001092076312315921614993540183426574105120183864443754249193548505372527353334648762876621278913661858681092794166628706450373701855015169772679216313195214802633
Third term and fourth term are the smallest known, I found the fourth one in
1997.
The smallest prime factor of four terms are 2,3,5,7 and they have 3,5,32,193
digits
MIA,MUA,MSUA, are abbreviations of Minimal Infinitary Amicable and Minimal
Unitary Amicable and Minimal Super Unitary Amicable
MIA-Pi(n)
114,12285
126,14595
MUA-Pi(n)
114,8619765
126,9627915
MSUA-Pi(n)
110,33,455
142,35,601
Do anyone know the next terms of these sequence?
Yasutoshi
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