Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #7 Jan 03 2023 11:55:04
%S 0,1,14,173,764,11239,184222,223261,4471112,97969133,111132998,
%T 2861599189,15847336748,52189778369,1649032491226,55341482060581,
%U 59580601511056,63835349051671,2519849300889202,2678253518766877
%N Numerator of 1/3 + 3/5 + 5/7 + ... + (2n - 1)/(2n + 1).
%H Harvey P. Dale, <a href="/A061484/b061484.txt">Table of n, a(n) for n = 0..1000</a>
%e 1/3, 14/15, 173/105, 764/315,...
%p summ := 0; for n from 1 to 30 do printf("%d ", numer(summ)); if (1 = 1) then summ := summ + (2*n-1)/(2*n+1): end if; od;
%t Join[{0},Accumulate[Table[(2n-1)/(2n+1),{n,30}]]//Numerator] (* _Harvey P. Dale_, Jan 03 2023 *)
%K nonn,frac,easy
%O 0,3
%A _Amarnath Murthy_, May 05 2001
%E Corrected and extended by Winston C. Yang (winston(AT)cs.wisc.edu), May 19 2001
%E Fourth example term corrected by Charles J. Daniels (chajadan(AT)gmail.com), Dec 02 2009