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%I #6 May 04 2019 21:49:45
%S 3,3,5,7,30,36,75,85,140,264,286,450,561,595,722,966,1242,1296,1612,
%T 1815,1881,2257,2496,2924,3577,3876,3978,4293,4399,4730,6298,6693,
%U 7373,7519,8829,8991,9775,10591,11102,11970,12870,13068,14766,14980,15587,15805
%N Sum of all numbers from 2*n-1 up to prime(n).
%F a(n) = A000217(A000040(n)) - A000217(2*n-2).
%e a(1) = 1+2 = 3;
%e a(2) = 3;
%e a(3) = 5;
%e a(5) = 9+10+11 = 30.
%p A000217 := proc(n) n*(n+1) /2 ; end:
%p A161626 := proc(n) A000217(ithprime(n))-A000217(2*n-2) ; end: seq(A161626(n),n=1..120) ; # _R. J. Mathar_, Oct 02 2009
%Y Cf. A000027, A000040, A161570.
%K nonn,easy
%O 1,1
%A _Juri-Stepan Gerasimov_, Jun 15 2009
%E Edited and corrected by _R. J. Mathar_, Oct 02 2009
%E Inserted a zero in an A-number - _R. J. Mathar_, Oct 23 2009
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