A254122 Numbers requiring two Fibonacci numbers to build using + or *.

4, 6, 7, 9, 10, 11, 14, 15, 16, 18, 22, 23, 24, 25, 26, 29, 35, 36, 37, 39, 40, 42, 47, 56, 57, 58, 60, 63, 64, 65, 68, 76, 90, 91, 92, 94, 97, 102, 104, 105, 110, 123, 145, 146, 147, 149, 152, 157, 165, 168, 169, 170, 178, 199

Offset: 1

Author

R. J. Mathar, Jan 25 2015

Keywords

• nonn

Comments

Numbers of the form F(i)+F(k) or F(i)*F(k), F=A000045, but not in A000045 themselves.

Supersequence of A179242; contains also numbers like 5*5=25, 5*8=40, 8*8=64 and 5*13=65. (Note that we count 8 twice in 8*8=64, including its multiplicity.)

Crossrefs

Cf. A025282, A049997.