Digit sum of composite odd number equals digit sum of juxtaposition of its prime factors (counted with multiplicity).

A036925

Digit sum of composite odd number equals digit sum of juxtaposition of its prime factors (counted with multiplicity).

Terms

    a(0) =27a(1) =85a(2) =121a(3) =265a(4) =319a(5) =355a(6) =391a(7) =483a(8) =517a(9) =535a(10) =627a(11) =645a(12) =663a(13) =729a(14) =825a(15) =861a(16) =895a(17) =913a(18) =915a(19) =985a(20) =1111a(21) =1165a(22) =1219a(23) =1255a(24) =1449a(25) =1507a(26) =1581a(27) =1633a(28) =1755a(29) =1795

External references