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A108659
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Square-chain primes (including square-loop primes).
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3
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2, 13, 31, 79, 97, 101, 109, 131, 181, 227, 313, 401, 409, 631, 727, 797, 881, 1009, 1013, 1097, 2797, 3109, 3181, 3631, 4001, 4013, 7901, 8101, 9001, 9013, 10009, 10181, 10909, 10979, 13109, 18131, 18181, 22279, 22727, 27901, 31013, 36313
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OFFSET
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1,1
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COMMENTS
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Primes such that each pair of adjacent digits sums up to a square. First term is a square-loop prime, cf. A108660.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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