a(n) is the least k such that f(a(n-1)+1) + ... + f(k) > f(a(n-2)+1) + ... + f(a(n-1)) for n > 1, where f(n) = 1/(n+6) and a(1) = 1.
A225921
a(n) is the least k such that f(a(n-1)+1) + ... + f(k) > f(a(n-2)+1) + ... + f(a(n-1)) for n > 1, where f(n) = 1/(n+6) and a(1) = 1.
Terms
- a(0) =1a(1) =14a(2) =50a(3) =150a(4) =427a(5) =1195a(6) =3324a(7) =9226a(8) =25587a(9) =70942a(10) =196672a(11) =545212a(12) =1511411a(13) =4189842a(14) =11614806a(15) =32197786a(16) =89256522a(17) =247430866a(18) =685911016a(19) =1901435842a(20) =5271031028a(21) =14611993445a(22) =40506373648a(23) =112289011899a(24) =311279955644a(25) =862909105217
External references
- oeis: A225921