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Search: id:A062336
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| A062336 |
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Primes whose sum of digits is a multiple of 7. |
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+0
3
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| 7, 43, 59, 61, 149, 151, 167, 223, 239, 241, 257, 293, 313, 331, 347, 383, 419, 421, 491, 509, 563, 601, 617, 653, 743, 761, 941, 1033, 1049, 1051, 1123, 1193, 1213, 1229, 1231, 1283, 1303, 1319, 1321, 1373, 1409, 1427, 1481, 1553, 1571, 1607, 1733
(list; graph; listen)
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OFFSET
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1,1
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
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EXAMPLE
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419 is a prime with sum of digits = 14, hence belongs to the sequence.
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PROGRAM
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(PARI) SumD(x)= { s=0; while (x>9, s+=x-10*(x\10); x\=10); return(s + x) } { n=0; forprime (p=2, 10^5, if (SumD(p)%7 == 0, write("b062336.txt", n++, " ", p); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 05 2009]
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CROSSREFS
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Sequence in context: A043064 A045800 A159254 this_sequence A085704 A061241 A062337
Adjacent sequences: A062333 A062334 A062335 this_sequence A062337 A062338 A062339
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KEYWORD
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nonn,base,easy
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jun 21 2001
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Jul 06 2001
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