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A071196
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a(n) is prime and sum of A071194(n) consecutive primes with p(n)=A000040(n) initial and A071195(n) end term.
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2
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5, 127, 23, 31, 41, 101, 59, 71, 83, 97, 109, 479, 131, 263, 431, 173, 331, 199, 211, 223, 421, 251, 269, 719, 757, 311, 827, 587, 349, 647, 683, 1367, 733, 439, 457, 811, 487, 503, 2141, 1747, 941, 5009, 991, 1951, 607, 2053, 661, 1151, 21139, 701, 1753
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| n=25: p(25)=97, sum=97+101+103+107+109+113+127=757=a(25), prime; shorter(length>1) partial sums are composite: {97,198,301,408,517,630,757}.
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MATHEMATICA
| Table[sm = Prime[k] + Prime[k + 1]; g = 1; While[ ! PrimeQ[sm], g++; sm = sm + Prime[k + g]]; sm, {k, 1, 51}] - Lei Zhou (lzhou5(AT)emory.edu), Dec 02 2005
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CROSSREFS
| Cf. A071194-A071198.
Sequence in context: A156956 A015476 A059486 * A157438 A142803 A094074
Adjacent sequences: A071193 A071194 A071195 * A071197 A071198 A071199
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KEYWORD
| nonn
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AUTHOR
| Labos E. (labos(AT)ana.sote.hu), May 16 2002
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