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Search: id:A129079
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A129079 Prime numbers that are the sum of consecutive prime numbers with the final digit 7 (primes in A030432). +0
3
7, 61, 379, 643, 967, 2549, 9547, 19531, 45121, 70199, 78467, 127637, 150373, 156257, 175069, 195311, 209459, 246709, 286999, 295513, 312931, 330859, 349207, 378239, 398357, 518191, 553733, 765287, 779731, 838927, 853981, 1166597 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n)=A030432(1)+A030432(2)+...+A030432(x); a is a prime number.

EXAMPLE

a(6)=2549 because 2549=A030432(1)+ A030432(2)+A030432(3)+A030432(4)+ A030431(5)+A030432(6)+A030432(7)+ A030432(8)+A030432(9)+A030432(10)+A030432(11)+A030432(12)+A030432(13)+A030432(14)+A030432(15)+A030432(16)+A030432(17)= 7+ 17+ 37+ 47+ 67+ 97+ 107+ 127+ 137+ 157+ 167+ 197+ 227+ 257+ 277+ 307+ 317; and 2549 is a prime number.

CROSSREFS

Cf. A030432; A000040.

Sequence in context: A100698 A141952 A064398 this_sequence A135165 A164943 A155599

Adjacent sequences: A129076 A129077 A129078 this_sequence A129080 A129081 A129082

KEYWORD

easy,base,nonn

AUTHOR

Tomas Xordan (xordan.tom(AT)gmail.com), May 11 2007

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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