

A181884


The sums of pairs of adjacent terms are the odd palindromic primes in ascending order.


4



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
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OFFSET

1,1


COMMENTS

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 A181881A181884.


REFERENCES

V. J. Pohjola, Posting to the Sequence Fans Mailing List, Nov 11 2010


LINKS

Table of n, a(n) for n=1..43.
Cf. A002385, A181881A181884.


MATHEMATICA

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 *)


CROSSREFS

Sequence in context: A193067 A177886 A011293 * A284662 A201565 A088191
Adjacent sequences: A181881 A181882 A181883 * A181885 A181886 A181887


KEYWORD

nonn,easy,base


AUTHOR

N. J. A. Sloane, Nov 18 2010


EXTENSIONS

More terms from Nathaniel Johnston, Nov 22 2010


STATUS

approved



