a(n) = the smallest positive integer not yet occurring such that the number of divisors of Sum_{k=1..n} a(k) is exactly n.
A175350
a(n) = the smallest positive integer not yet occurring such that the number of divisors of Sum_{k=1..n} a(k) is exactly n.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =5a(4) =67a(5) =11a(6) =637a(7) =12a(8) =348a(9) =47a(10) =57913a(11) =26a(12) =472366a(13) =463a(14) =26105a(15) =15a(16) =42488697a(17) =118a(18) =344373650a(19) =136a(20) =2089071a(21) =2496a(22) =30991547417a(23) =7a(24) =332851440a(25) =93936a(26) =3467844a(27) =590a(29) =31a(31) =13
External references
- oeis: A175350