a(n) = sigma(n) * A332818(n).

Terms

a(0) =1a(1) =9a(2) =20a(3) =63a(4) =42a(5) =180a(6) =104a(7) =405a(8) =325a(9) =378a(10) =204a(11) =1260a(12) =154a(13) =936a(14) =840a(15) =2511a(16) =342a(17) =2925a(18) =580a(19) =2646a(20) =2080a(21) =1836a(22) =888a(23) =8100a(24) =1519a(25) =1386a(26) =5000a(27) =6552a(28) =690a(29) =7560