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A066039
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Largest prime less than or equal to the sum of first n primes (A007504).
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1
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2, 5, 7, 17, 23, 41, 53, 73, 97, 127, 157, 197, 233, 281, 317, 379, 439, 499, 563, 631, 709, 787, 863, 953, 1051, 1153, 1259, 1367, 1471, 1583, 1709, 1847, 1987, 2113, 2273, 2423, 2579, 2741, 2909, 3083, 3259, 3433, 3637, 3823, 4027, 4219, 4423, 4657
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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EXAMPLE
| a(3) = 7 because 7 is the first prime <= 10 = 2+3+5. a(4) = 17 because 17 is a prime and is equal to 2+3+5+7.
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MATHEMATICA
| Table[ PrevPrim[ Sum[ Prime[i], {i, 1, n}] + 1], {n, 1, 60} ]
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PROG
| (PARI) { s=0; for (n=1, 1000, s+=prime(n); a=precprime(s); write("b066039.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Nov 08 2009]
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CROSSREFS
| Sequence in context: A176676 A103805 A066028 * A142341 A045357 A168035
Adjacent sequences: A066036 A066037 A066038 * A066040 A066041 A066042
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KEYWORD
| nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Dec 12 2001
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