cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A129077 Prime numbers that are the sum of consecutive prime numbers with the final digit 1 (primes in A030430).

Original entry on oeis.org

11, 83, 1181, 7937, 9239, 10631, 12143, 28429, 66973, 75307, 79609, 206593, 311419, 348487, 397897, 408169, 518779, 628877, 654821, 708119, 735533, 763457, 867281, 1030201, 1519333, 1581449, 1623863, 1688509, 1732763, 2012657, 2037029
Offset: 1

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Author

Tomas Xordan, May 11 2007

Keywords

Comments

Primes in the partial sums of all primes, starting with 11, that have 1 as their final digit. - Harvey P. Dale, Nov 15 2024

Examples

			a(2)=83 because 83=A030430(1)+ A030430(2)+A030430(3)=11+31+41 and 83 is a prime number.
a(3)=1181 because 1181=A030430(1)+ A030430(2)+A030430(3)+A030430(4)+ A030430(5)+A030430(6)+A030430(7)+ A030430(8)+A030430(9)+A030430(10)+A030430(11)= 11+ 31+ 41+ 61+ 71+ 101+ 131+ 151+ 181+ 191+ 211; and 1181 is a prime number.
		

Crossrefs

Programs

  • Mathematica
    Select[Accumulate[Select[Prime[Range[2000]],Mod[#,10]==1&]],PrimeQ] (* Harvey P. Dale, Nov 15 2024 *)

Formula

a(n)=A030430(1)+A030430(2)+...+A030430(x); a is a prime number.