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

A334794

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

Terms

    a(0) =1a(1) =7a(2) =13a(3) =63a(4) =31a(5) =55a(6) =57a(7) =1023a(8) =364a(9) =937a(10) =133a(11) =12207a(12) =183a(13) =1239a(14) =1843a(15) =32767a(16) =307a(17) =76222a(18) =381a(19) =168993a(20) =14181a(21) =4495a(22) =553a(23) =1672047a(24) =3906a(25) =14385a(26) =29524a(27) =23247a(28) =871a(29) =812785

External references