Define the sequence S(a(0),a(1)) by a(n+2) is the least integer such that a(n+2)/a(n+1) > a(n+1)/a(n) for n >= 0. This is S(3,15) (agrees with A019478 only for n <= 23).
A019477
Define the sequence S(a(0),a(1)) by a(n+2) is the least integer such that a(n+2)/a(n+1) > a(n+1)/a(n) for n >= 0. This is S(3,15) (agrees with A019478 only for n <= 23).
Terms
- a(0) =3a(1) =15a(2) =76a(3) =386a(4) =1961a(5) =9963a(6) =50618a(7) =257170a(8) =1306579a(9) =6638211a(10) =33726124a(11) =171349094a(12) =870556961a(13) =4422955527a(14) =22471287314a(15) =114167721214a(16) =580041026803
External references
- oeis: A019477