a(n) = Product{k|n} k^(n/k); product is over the positive divisors of n.

Terms

a(0) =1a(1) =2a(2) =3a(3) =16a(4) =5a(5) =432a(6) =7a(7) =2048a(8) =243a(9) =8000a(10) =11a(11) =143327232a(12) =13a(13) =87808a(14) =455625a(15) =67108864a(16) =17a(17) =117546246144a(18) =19a(20) =15752961a(21) =5451776a(22) =23a(24) =78125a(25) =35995648a(26) =387420489a(28) =29