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Search: id:A052035
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| A052035 |
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Palindromic primes whose sum of squared digits is also prime. |
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+0
3
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| 11, 101, 131, 191, 313, 353, 373, 797, 919, 10301, 11311, 12721, 13331, 13931, 14341, 14741, 16361, 17971, 18181, 19391, 30103, 30703, 33533, 71317, 71917, 74747, 75557, 76367, 77977, 79397, 90709, 93139, 93739, 95959, 96769, 97379
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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Journal of Recreational Mathematics, Vol. 20(2), 1988, Charles W. Trigg.
"Hands On Numbers Count", Personal Computer World, 1997, p. 290.
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EXAMPLE
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E.g. 373 -> 3^2+7^2+3^2 = 67 and prime.
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CROSSREFS
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Cf. A052034, A003132.
Sequence in context: A088281 A068685 A109830 this_sequence A083144 A058411 A134462
Adjacent sequences: A052032 A052033 A052034 this_sequence A052036 A052037 A052038
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KEYWORD
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nonn,base
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AUTHOR
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Patrick De Geest (pdg(AT)worldofnumbers.com), Dec 15 1999.
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