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A106716
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Largest of four consecutive primes whose sum of digits is prime.
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0
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7, 11, 199, 331, 337, 607, 829, 1103, 1109, 1303, 1307, 1367, 1471, 2083, 2087, 2089, 2377, 2591, 2593, 2609, 3181, 3187, 3259, 3271, 3299, 3301, 3307, 3677, 3691, 4007, 4157, 4159, 4177, 4201, 4409, 4421, 4423, 4441, 4447, 4937, 5077, 5323, 5431, 5437
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| a(3)=199 is a term because this is Largest 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: A145953 A154303 A128340 * A106818 A201120 A164328
Adjacent sequences: A106713 A106714 A106715 * A106717 A106718 A106719
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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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