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Search: id:A090700
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| A090700 |
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a(n) is the smallest number which is simultaneously a prime, the sum of 2 distinct primes, the sum of 3 distinct primes, ... and the sum of n distinct primes. |
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+0
1
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| 2, 5, 19, 31, 43, 61, 103, 103, 139, 151, 199, 229, 283, 313, 421, 421, 523, 523, 643, 661, 811, 811, 1021, 1021, 1231, 1231, 1429, 1429, 1609, 1621, 1873, 1873, 2143, 2239, 2551, 2551, 2791, 2791, 3121, 3121, 3463, 3463, 3853, 3853, 4243, 4261, 4723
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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a(5)=43 because 43=41+2=31+7+5=31+7+3+2=17+11+7+5+3
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CROSSREFS
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Sequence in context: A027714 A077317 A092946 this_sequence A105889 A086085 A138250
Adjacent sequences: A090697 A090698 A090699 this_sequence A090701 A090702 A090703
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KEYWORD
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nonn
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AUTHOR
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Jon Perry (perry(AT)globalnet.co.uk), Jan 11, 2004
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EXTENSIONS
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Extended through a(5) by Gershon Bialer (gersh(AT)bialer.com), Jan 11 2004
Extended through a(18) by Don Reble (djr(AT)nk.ca), Jan 12, 2004
Terms a(19) onwards from Ray Chandler (rayjchandler(AT)sbcglobal.net), May 01 2007
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