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A092595
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Numbers n such that sum of decimal digits of n and n+1 are both prime numbers, i.e. both n and n+1 are in A028834.
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0
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2, 11, 20, 29, 49, 101, 110, 119, 139, 199, 200, 209, 229, 289, 319, 379, 409, 469, 559, 649, 739, 829, 919, 1001, 1010, 1019, 1039, 1099, 1100, 1109, 1129, 1189, 1219, 1279, 1309, 1369, 1459, 1549, 1639, 1729, 1819, 1909, 2000, 2009, 2029, 2089, 2119, 2179
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| n=4429, sam[n]=4+4+2+9=19, sam[n+1]=4+4+3+0=11.
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MATHEMATICA
| t=Table[0, {256}]; j=1; Do[s=Apply[Plus, IntegerDigits[n]]; s1=Apply[Plus, IntegerDigits[n+1]]; If[PrimeQ[s]&&PrimeQ[s1], Print[n]; t[[j]]=n; j=j+1], {n, 1, 10000}]; t
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CROSSREFS
| Cf. A028834.
Sequence in context: A067670 A159879 A017185 * A116990 A175927 A146087
Adjacent sequences: A092592 A092593 A092594 * A092596 A092597 A092598
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KEYWORD
| base,nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), Mar 17 2004
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