a(1)=1. a(n) = a(n-1) + (largest integer occurring among {a(1),a(2),a(3),...,a(n-1)} that is coprime to n).
A120939
a(1)=1. a(n) = a(n-1) + (largest integer occurring among {a(1),a(2),a(3),...,a(n-1)} that is coprime to n).
Terms
- a(0) =1a(1) =2a(2) =4a(3) =5a(4) =9a(5) =14a(6) =23a(7) =46a(8) =92a(9) =115a(10) =230a(11) =345a(12) =690a(13) =1035a(14) =1127a(15) =2254a(16) =4508a(17) =5635a(18) =11270a(19) =12397a(20) =12627a(21) =25254a(22) =25268a(23) =37665a(24) =62933a(25) =100598a(26) =201196a(27) =264129a(28) =528258a(29) =591191
External references
- oeis: A120939