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Search: id:A068676
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| A068676 |
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Primes formed by the concatenation 1, n, n^2, n, 1. |
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+0
1
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| 12421, 13931, 163661, 186481, 115225151, 121441211, 122484221, 124576241, 131961311, 1502500501, 1512601511, 1603600601, 1674489671, 1735329731, 1806400801, 1816561811, 1100100001001, 1101102011011, 1104108161041
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OFFSET
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1,1
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EXAMPLE
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163661 is a prime which is the concatenation of 1, 6, 36, 6 and 1.
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CROSSREFS
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Sequence in context: A096618 A140938 A061731 this_sequence A033669 A122726 A072891
Adjacent sequences: A068673 A068674 A068675 this_sequence A068677 A068678 A068679
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KEYWORD
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base,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 02 2002
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EXTENSIONS
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More terms from Sascha Kurz (sascha.kurz(AT)uni-bayreuth.de), Mar 27 2002
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