a(n) is the least number such that bigomega(a(n)) = bigomega(R(a(n)))/n, where R(n) is the digit reverse of n and bigomega(n) is the number of prime divisors of n counted with multiplicity.

A284496

a(n) is the least number such that bigomega(a(n)) = bigomega(R(a(n)))/n, where R(n) is the digit reverse of n and bigomega(n) is the number of prime divisors of n counted with multiplicity.

Terms

    a(0) =2a(1) =19a(2) =29a(3) =61a(4) =23a(5) =487a(6) =821a(7) =2557a(8) =2749a(9) =4201a(10) =25747a(11) =61843a(12) =211643a(13) =614881a(14) =238673a(15) =272059a(16) =270131a(17) =405719a(18) =8239969a(19) =42037283a(20) =44922991a(21) =44166589a(22) =67719697a(23) =61277761a(24) =253442899a(25) =2321783617a(26) =4471131827a(27) =4640384471a(28) =40782386369a(29) =4055086219

External references