Number of distinct ways of expressing n using only addition, multiplication (with all factors greater than 1), necessary parentheses, and the number 1.
A373446
Number of distinct ways of expressing n using only addition, multiplication (with all factors greater than 1), necessary parentheses, and the number 1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =3a(6) =3a(7) =6a(8) =7a(9) =10a(10) =10a(11) =18a(12) =19a(13) =27a(14) =30a(15) =50a(16) =53a(17) =80a(18) =85a(19) =133a(20) =146a(21) =209a(22) =223a(23) =350a(24) =382a(25) =544a(26) =597a(27) =886a(28) =962a(29) =1385
External references
- oeis: A373446