a(n) = A276086(1+n) - A276086(A001065(n)), where A276086 is the primorial base exp-function, and A001065 is the sum of proper divisors of n.

A379498

a(n) = A276086(1+n) - A276086(A001065(n)), where A276086 is the primorial base exp-function, and A001065 is the sum of proper divisors of n.

Terms

    a(0) =2a(1) =4a(2) =7a(3) =12a(4) =3a(5) =5a(6) =13a(7) =20a(8) =36a(9) =75a(10) =23a(11) =-175a(12) =73a(13) =105a(14) =195a(15) =300a(16) =123a(17) =-500a(18) =373a(19) =-375a(20) =1035a(21) =2175a(22) =623a(23) =1215a(24) =1870a(25) =3525a(26) =5575a(27) =5625a(28) =5a(29) =-161

External references