

A158331


List of twin primes p1 and p2 with the sums of digits in p1 and p2 are twin primes.


0



3, 5, 5, 7, 41, 43, 137, 139, 191, 193, 197, 199, 227, 229, 281, 283, 311, 313, 461, 463, 641, 643, 821, 823, 827, 829, 881, 883, 1031, 1033, 1091, 1093, 1277, 1279, 1301, 1303, 1451, 1453, 1721, 1723, 1871, 1873, 2027, 2029, 2081, 2083, 2087, 2089, 2111
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OFFSET

1,1


COMMENTS

If twin primes of A158311 are p1 and p2, then twin primes are sum of digits of p1 and sum of digits of p2.


LINKS

Table of n, a(n) for n=1..49.


EXAMPLE

(3, 5), (5, 7), (137(1+3+7=11), 139(1+3+9=13)), (191(1+9+1=11), 193(1+9+3=13)), (197(1+9+7=17), 199(1+9+9=19)), (227(2+2+7=11), 229(2+2+9=13)), (281(2+8+1=11), 283(2+8+3=13)), (311(3+1+1=5), 313(3+1+3=7)), (461(4+6+1=11), 463(4+6+3=13))


CROSSREFS

Cf. A077800.
Sequence in context: A090941 A090917 A226540 * A197286 A019632 A021285
Adjacent sequences: A158328 A158329 A158330 * A158332 A158333 A158334


KEYWORD

nonn,base,less


AUTHOR

JuriStepan Gerasimov, Mar 16 2009


EXTENSIONS

Corrected( 41,43, 197,199, 641,643 inserted etc.) by R. J. Mathar, May 19 2010


STATUS

approved



