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A192225
Numbers that are both Fibonacci and Pell
1
OFFSET
1,3
COMMENTS
Alekseyev proved that the only numbers which are both Fibonacci A000045 and Pell A000129 are 0, 1, 2, and 5.
FORMULA
A000045 intersect A000129 (as sets)
EXAMPLE
{0, 1, 1, 2, 3, 5, 8, 13, ...} intersect {0, 1, 2, 5, 12, 29, 70, 169, ...} = {0, 1, 2, 5}.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Jonathan Sondow, Jul 11 2011
STATUS
approved