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A181884
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The sums of pairs of adjacent terms are the odd palindromic primes in ascending order.
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4
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3, 0, 5, 2, 9, 92, 39, 112, 69, 122, 191, 162, 211, 172, 555, 202, 585, 212, 707, 222, 10079, 422, 10179, 1132, 10279, 2142, 10579, 2242, 11089, 2742, 11189, 3152, 11589, 3862, 11689, 4372, 11989, 4572, 12089, 5382, 12589, 5592, 5596
(list;
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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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COMMENTS
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This sequence was originally presented at http://www.sanaristikot.net by V.J. Pohjola, Nov 11 2010. [Added by V.J. Pohjola, Nov 25 2010.]
There are four possible solutions: see A181881-A181884.
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REFERENCES
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V. J. Pohjola, Posting to the Sequence Fans Mailing List, Nov 11 2010
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LINKS
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Table of n, a(n) for n=1..43.
Cf. A002385, A181881-A181884.
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MATHEMATICA
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lst = {}; a = 3; c = -1; Label[alku1]; b = c; Label[alku2]; b =b + 1; If[PrimeQ[a + b] && IntegerDigits[a + b] == Reverse[IntegerDigits[a + b]], AppendTo[lst, a], Goto[alku2]]; c = a; a = b; If[a < nn, Goto[alku1]]; lst (* V.J. Pohjola, Nov 25 2010 *)
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CROSSREFS
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Sequence in context: A193067 A177886 A011293 * A201565 A088191 A179179
Adjacent sequences: A181881 A181882 A181883 * A181885 A181886 A181887
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KEYWORD
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nonn,easy,base
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AUTHOR
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N. J. A. Sloane, Nov 18 2010
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EXTENSIONS
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More terms from Nathaniel Johnston, Nov 22 2010
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STATUS
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approved
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