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A090700
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.
0
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
OFFSET
1,1
EXAMPLE
a(5)=43 because 43 = 41 + 2 = 31 + 7 + 5 = 31 + 7 + 3 + 2 = 17 + 11 + 7 + 5 + 3.
CROSSREFS
Sequence in context: A077317 A092946 A374178 * A227632 A105889 A086085
KEYWORD
nonn
AUTHOR
Jon Perry, Jan 11 2004
EXTENSIONS
Extended through a(5) by Gershon Bialer (gersh(AT)bialer.com), Jan 11 2004
Extended through a(18) by Don Reble, Jan 12 2004
Terms a(19) onwards from Ray Chandler, May 01 2007
STATUS
approved