Factorial expansions of the entries in A085220.

Terms

a(0) =0a(1) =1a(2) =1a(3) =10a(4) =21a(5) =10a(6) =11a(7) =210a(8) =211a(9) =11a(10) =20a(11) =211a(12) =2110a(13) =221a(14) =20a(15) =21a(16) =320a(17) =2111a(18) =2210a(19) =311a(20) =21a(21) =100a(22) =321a(23) =3220a(24) =2211a(25) =3110a(26) =321a(27) =100a(28) =101a(29) =2100