1,1

Also, concatenation of A008963(n) and A003893(n).

Table of n, a(n) for n=1..69.

a(15)=60 because the 15th positive Fibonacci number is 610 and the concatenation of initial and final digits of 610 is 60.

Cf. A000045, A003893, A008963, A073729, A138840, A138841, A138842, A138843.

Sequence in context: A110414 A040111 A003887 * A022345 A218163 A152082

Adjacent sequences: A138841 A138842 A138843 * A138845 A138846 A138847

base,easy,nonn

Omar E. Pol, Apr 02 2008

approved