Largest prime with digit sum n and maximum digit product (or 0 if no such prime exists).

Terms

a(0) =2a(1) =3a(2) =31a(3) =23a(4) =0a(5) =223a(6) =233a(7) =0a(8) =433a(9) =3323a(10) =0a(11) =33223a(12) =23333a(13) =0a(14) =323233a(15) =333323a(16) =0a(17) =3332233a(18) =3333233a(19) =0a(20) =3433333a(21) =33323333a(22) =0a(23) =333333223a(24) =333233333a(25) =0a(26) =3332333233a(27) =3333333323a(28) =0a(29) =33333333223