“…. , a n } is part of a "classic" integer sequences: arithmetic and almost arithmetic ( [4,18,11,25]), Fibonacci ( [12]), geometric ( [14]), Mersenne ( [22]), repunit ( [21]), squares and cubes ( [10,13]), Thabit ( [20]), et cetera. For example, in [4] Brauer proves that F(n, n + 1, .…”