OFFSET
1,2
COMMENTS
a(12) = 9043 unless A363533(9043) = -1.
MATHEMATICA
s = Array[(k = 1; While[! PrimeQ[# Fibonacci[k] + 1], k++]; k) &, 3000]; t = Union@ FoldList[Max, s]; Array[FirstPosition[s, t[[#]]][[1]] &, Length[t]] (* Michael De Vlieger, Jun 10 2023 *)
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Pontus von Brömssen, Jun 09 2023
STATUS
approved