Number of distinct values produced from sums and products of n unity arguments.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =9a(6) =11a(7) =17a(8) =23a(9) =30a(10) =44a(11) =60a(12) =80a(13) =114a(14) =156a(15) =212a(16) =296a(17) =404a(18) =556a(19) =770a(20) =1065a(21) =1463a(22) =2032a(23) =2795a(24) =3889a(25) =5364a(26) =7422a(27) =10300a(28) =14229a(29) =19722