A272635 Numbers that are not a sum or a difference of two Fibonacci numbers.

17, 25, 27, 28, 30, 38, 40, 41, 43, 44, 45, 46, 48, 49, 51, 59, 61, 62, 64, 65, 66, 67, 69, 70, 71, 72, 73, 74, 75, 77, 78, 79, 80, 82, 83, 85, 93, 95, 96, 98, 99, 100, 101, 103, 104, 105, 106, 107, 108, 109, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122

Offset

1,1

Comments

This sequence is the complement of the union of A007298 and A084176.

Links

Robert Israel, Table of n, a(n) for n = 1..10000

Maple

N:= 30: # to get all terms < A000045(N+1) - A000045(N-4)
fibs:= [seq(combinat:-fibonacci(i), i=1..N)]:
R:= {seq(seq(fibs[i]-fibs[j], j=1..i-1), i=1..N), seq(seq(fibs[i]+fibs[j], j=1..i), i=1..N)}:
A:= {$1..fibs[-1]+fibs[-2]-fibs[-5]-1} minus R:
sort(convert(A, list)); # Robert Israel, May 04 2016

Crossrefs

Cf. A000045, A007298, A084176, A105448, A105449.

Sequence in context: A340050 A051780 A124971 * A105448 A336007 A082130

Adjacent sequences: A272632 A272633 A272634 * A272636 A272637 A272638

Keyword

nonn,easy

Author

Altug Alkan, May 04 2016

Status

approved