Array read by rows: T(n,k) is the first number with n prime factors (counted with multiplicity) and n occurrences of decimal digit k.

A375784

Array read by rows: T(n,k) is the first number with n prime factors (counted with multiplicity) and n occurrences of decimal digit k.

Terms

    a(0) =101a(1) =13a(2) =2a(3) =3a(4) =41a(5) =5a(6) =61a(7) =7a(8) =83a(9) =19a(10) =1003a(11) =115a(12) =22a(13) =33a(14) =445a(15) =55a(16) =166a(17) =77a(18) =818a(19) =299a(20) =10002a(21) =1113a(22) =222a(23) =333a(24) =4244a(25) =555a(26) =2666a(27) =777a(28) =8828a(29) =3999

External references