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A165287
Primes which are the sum of at least 3 consecutive odd nonprimes (A014076) >1.
0
61, 71, 73, 97, 107, 163, 179, 197, 233, 239, 257, 263, 271, 307, 331, 349, 359, 367, 397, 409, 419, 421, 461, 467, 479, 487, 503, 523, 547, 571, 593, 599, 613, 617, 631, 659, 677, 691, 709, 727, 733, 743, 757, 761, 787, 809, 811, 821, 827, 839, 857
OFFSET
1,1
EXAMPLE
15+21+25 = 61, 9+15+21+25+27 = 97.
MATHEMATICA
lst={}; Do[If[PrimeQ[m], Continue[]]; s=m; Do[If[PrimeQ[n], Continue[]]; s+=n; If[PrimeQ[s], If[s<=2917, AppendTo[lst, s]]], {n, m+2, 2*6!, 2}], {m, 1, 2*6!, 2}]; lst=Take[Union@lst, 200]
PROG
(PARI) N=1000; v=vector(N); L=listcreate(); n=9; while(n<N, if(!isprime(n), listput(L, n)); n=n+2); vv=Vec(L); forstep(k=3, #vv, 2, for(offs=1, #vv-k+1, s=sum(i=offs, offs+k-1, vv[i]); if(isprime(s)&&s<=N, v[s]=1))); for(n=60, #v, if(v[n], print1(n, ", "))) \\ Ralf Stephan, Nov 26 2013
CROSSREFS
Cf. A106091.
Sequence in context: A039390 A043213 A043993 * A064229 A180555 A039478
KEYWORD
nonn
AUTHOR
EXTENSIONS
Edited by Ralf Stephan, Nov 26 2013
STATUS
approved