a(1)=1. a(n)>a(n-1) is the smallest positive integer such that the number of divisors of Sum{k=1..n} a(k) is n.

A283487

a(1)=1. a(n)>a(n-1) is the smallest positive integer such that the number of divisors of Sum{k=1..n} a(k) is n.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =12a(4) =60a(5) =66a(6) =582a(7) =605a(8) =782a(9) =881a(10) =56052a(11) =56059a(12) =416333a(13) =416591a(14) =425552a(15) =425554a(16) =41247583a(17) =41247675a(18) =303126093a(19) =303126138a(20) =304477309a(21) =304482240a(22) =30081553433a(23) =30081553435a(24) =30710954157a(25) =30711032607a(26) =30712767417a(27) =30712767879

External references