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A106715
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Smallest of four consecutive primes whose sum of digits is prime.
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0
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2, 3, 191, 311, 313, 593, 821, 1091, 1093, 1291, 1297, 1321, 1451, 2063, 2069, 2081, 2351, 2551, 2557, 2579, 3163, 3167, 3251, 3253, 3257, 3259, 3271, 3659, 3671, 3989, 4133, 4139, 4153, 4157, 4373, 4391, 4397, 4409, 4421, 4919, 5039, 5297, 5413, 5417
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(3)=191 is a term because this is smallest of four consecutive primes i.e. 191,193,197 and 199, whose sum of digits is prime i.e. 1+9+1=11, 1+9+3=13, 1+9+7=17 and 1+9+9=19.
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CROSSREFS
| Sequence in context: A124236 A042369 A042701 * A106817 A160759 A191835
Adjacent sequences: A106712 A106713 A106714 * A106716 A106717 A106718
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KEYWORD
| base,nonn
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AUTHOR
| Shyam Sunder Gupta (guptass(AT)rediffmail.com), May 14 2005
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