A076988 - OEIS

%I #6 Dec 05 2013 19:55:48

%S 2,3,13,5,21,13,8,89,55,21,34,13,144,1597,63245986,28657,987,55,1597,

%T 21,610,89,17711,28657,4807526976,514229,55,1597,233,165580141,514229,

%U 2971215073,34,987,17711,28657,14930352,1597,139583862445,956722026041

%N Smallest Fibonacci number of the form n*k + 1 with k>0.

%e a(3) = 13 as 13 =3*4 + 1 is the smallest such Fibonacci number.

%p with(combinat, fibonacci):a[1] := 2:for n from 2 to 75 do j := 3:while((fibonacci(j) mod n)<>1)do j := j+1:od:a[n] := fibonacci(j):od:seq(a[k],k=1..75);

%K nonn

%O 1,1

%A _Amarnath Murthy_, Oct 25 2002

%E More terms from _Sascha Kurz_, Jan 26 2003