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A261142
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Numbers n such that n, p=prime(n) and q=prime(p) have the same sum of digits.
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0
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88, 248, 826, 1417, 1571, 1595, 3682, 3928, 4448, 5089, 5137, 6479, 7754, 8038, 8384, 8461, 9257, 9640, 10393, 10825, 10922, 11878, 13294, 14290, 14767, 14941, 15977, 16786, 17684, 17777, 17935, 18437, 18677, 19495, 20497, 20555, 21649, 22487, 23239, 23396
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OFFSET
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1,1
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COMMENTS
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Hence both p and q are Honaker primes (A033548) and both n and p are terms in A033549.
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LINKS
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EXAMPLE
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n=88, p=prime(n)=457 and q=prime(p)=3229 have the same sum of digits=16;
n=248, p=prime(n)=1571 and q=prime(p)=13217 have the same sum of digits=14;
n=660349, p=178115131 and q=178115131 have the same sum of digits=28.
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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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