a(n) = numerator of Sum_{d|n} (pod(d)/sigma(d))where pod(k) = the product of the divisors of k (A007955) and sigma(k) = the sum of the divisors of k (A000203).

A324984

a(n) = numerator of Sum_{d|n} (pod(d)/sigma(d))where pod(k) = the product of the divisors of k (A007955) and sigma(k) = the sum of the divisors of k (A000203).

Terms

    a(0) =1a(1) =5a(2) =7a(3) =59a(4) =11a(5) =65a(6) =15a(7) =743a(8) =199a(9) =145a(10) =23a(11) =5735a(12) =27a(13) =257a(14) =287a(15) =130553a(16) =35a(17) =24497a(18) =39a(19) =25159a(20) =525a(21) =577a(22) =47a(23) =2352899a(24) =1091a(25) =785a(26) =11467a(27) =67847a(28) =59a(29) =811525

External references