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Search: id:A117770
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| A117770 |
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Fibonacci numbers for which the product of the digits is also a Fibonacci number. |
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+0
1
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| 0, 1, 2, 3, 5, 8, 13, 21, 610, 10946, 75025, 832040, 2178309, 5702887, 14930352, 39088169, 102334155, 165580141, 701408733, 1134903170, 1836311903, 2971215073, 4807526976, 7778742049, 12586269025, 20365011074, 32951280099
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OFFSET
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1,3
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EXAMPLE
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21 is in the sequence because (1)it is a Fibonacci number and (2)the product of its digits 2*1=2 is also a Fibonacci number.
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CROSSREFS
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Cf. A000045.
Sequence in context: A042339 A137574 A041247 this_sequence A053412 A004697 A018151
Adjacent sequences: A117767 A117768 A117769 this_sequence A117771 A117772 A117773
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KEYWORD
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base,nonn
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AUTHOR
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Luc Stevens (lms022(AT)yahoo.com), Apr 15 2006
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EXTENSIONS
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Entries checked by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Apr 17 2006
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