779984domain: NAppears in sequencesa(0)=1; a(1)=1; for n >= 2, a(n) = a(n-1) + a(n-A000005(n)).at n=39A320357Sum of numerator and denominator in a rational approximation j/k of q = log(2)/log(3), such that j/k - q is a new minimum, i.e., q is approximated from above.at n=10A355515