A023502 a(n) = b(n) + d(n), where b(n) = (n-th Fibonacci number > 2 ) and d(n) = (n-th number that is 1, 2, or 3, or is not a Lucas number).

4, 7, 11, 18, 27, 42, 64, 99, 156, 246, 391, 625, 1003, 1614, 2603, 4201, 6786, 10968, 17734, 28681, 46393, 75051, 121420, 196446, 317841, 514260, 832072, 1346302, 2178343, 3524613, 5702923, 9227502, 14930390, 24157856, 39088209

Offset

0,1

Links

Table of n, a(n) for n=0..34.

Crossrefs

Sequence in context: A310767 A207871 A023666 * A274286 A024882 A296551

Adjacent sequences: A023499 A023500 A023501 * A023503 A023504 A023505

Keyword

nonn

Author

Clark Kimberling

Status

approved