Smallest number requiring n terms to be expressed as a sum of factorials.

Terms

a(0) =0a(1) =1a(2) =3a(3) =5a(4) =11a(5) =17a(6) =23a(7) =47a(8) =71a(9) =95a(10) =119a(11) =239a(12) =359a(13) =479a(14) =599a(15) =719a(16) =1439a(17) =2159a(18) =2879a(19) =3599a(20) =4319a(21) =5039a(22) =10079a(23) =15119a(24) =20159a(25) =25199a(26) =30239a(27) =35279a(28) =40319a(29) =80639