a(1)=1. a(n) = n*a(n-1) if n*a(n-1) has a fewer number of divisors than n+a(n-1) does. a(n) = n+a(n-1) if n*a(n-1) has a greater or equal number of divisors than n+a(n-1) does.
A134190
a(1)=1. a(n) = n*a(n-1) if n*a(n-1) has a fewer number of divisors than n+a(n-1) does. a(n) = n+a(n-1) if n*a(n-1) has a greater or equal number of divisors than n+a(n-1) does.
Terms
- a(0) =1a(1) =3a(2) =9a(3) =13a(4) =65a(5) =71a(6) =497a(7) =505a(8) =514a(9) =524a(10) =535a(11) =547a(12) =7111a(13) =7125a(14) =106875a(15) =106891a(16) =1817147a(17) =1817165a(18) =34526135a(19) =34526155a(20) =34526176a(21) =34526198a(22) =34526221a(23) =34526245a(24) =34526270a(25) =897683020a(26) =897683047a(27) =897683075a(28) =897683104a(29) =897683134
External references
- oeis: A134190