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A039944
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Undulating palindromic primes of form ABABAB...BA with alternating prime and nonprime digits.
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2
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2, 3, 5, 7, 131, 151, 313, 383, 787, 797, 929, 74747, 78787, 95959, 1212121, 383838383, 929292929, 979797979, 12121212121, 151515151515151, 383838383838383, 38383838383838383, 74747474747474747, 95959595959595959
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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REFERENCES
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C. A. Pickover, "Wonders of Numbers", Oxford New York 2001, Chapter 52, pp. 123-124, 316-317.
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LINKS
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Table of n, a(n) for n=1..24.
C. A. Pickover, "Wonders of Numbers, Adventures in Mathematics, Mind and Meaning," Zentralblatt review
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CROSSREFS
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Sequence in context: A090718 A167853 A117703 * A076611 A082805 A071119
Adjacent sequences: A039941 A039942 A039943 * A039945 A039946 A039947
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KEYWORD
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base,nonn
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AUTHOR
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G. L. Honaker, Jr.
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STATUS
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approved
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