Largest composite number obtained by concatenation of parts of a distinct partition of n, or 0 if no such number exist.

A110454

Largest composite number obtained by concatenation of parts of a distinct partition of n, or 0 if no such number exist.

Terms

    a(0) =0a(1) =0a(2) =21a(3) =0a(4) =32a(5) =321a(6) =412a(7) =512a(8) =621a(9) =4321a(10) =5321a(11) =6321a(12) =7312a(13) =8321a(14) =54321a(15) =64321a(16) =74321a(17) =84321a(18) =94312a(19) =432110a(20) =654321a(21) =754321a(22) =854321a(23) =954321a(24) =5432110a(25) =6432110a(26) =7432110a(27) =8432110a(28) =9432110a(29) =9654321

External references