86086domain: NAppears in sequencesa(1)=a(2)=1, a(n)=a(n-1)+a(n-2) if n is not congruent to 3, a(n)=a(n-1)+a(n/3) if n is congruent to 3.at n=30A078913Abundant numbers whose aliquot sequence is abundant, deficient, abundant, ..., etc.at n=17A234969Cyclops numbers with circular digits {0,6,8,9}.at n=40A274765