Number of representations of n as a sum of products of distinct pairs of positive integers, considered to be equivalent when terms or factors are reordered.
A211856
Number of representations of n as a sum of products of distinct pairs of positive integers, considered to be equivalent when terms or factors are reordered.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =4a(6) =6a(7) =8a(8) =10a(9) =15a(10) =20a(11) =25a(12) =34a(13) =44a(14) =56a(15) =74a(16) =94a(17) =117a(18) =151a(19) =190a(20) =236a(21) =298a(22) =370a(23) =455a(24) =567a(25) =699a(26) =853a(27) =1050a(28) =1282a(29) =1555
External references
- oeis: A211856