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.
%I A154569 #9 Aug 07 2013 10:20:27 %S A154569 0,4,372,95304,45231880,33784239180,36348656777148,53168436739227280, %T A154569 101441716823942402448,244654264259760069435540, %U A154569 727702646597963991868772740,2616780161875511741808194232024,11190492899233441015089845457437592 %N A154569 Partial sums of (2n-1)^(2n+1)+(2n+1)^(2n-1). %C A154569 All the terms of the sequence are divisible by 4, a(0) = 0 by default. %F A154569 a(n) = a(n-1)+(2n-1)^(2n+1)+(2n+1)^(2n-1). %F A154569 a(n) = sum_{k=0..n} A051489(2k-1). - _R. J. Mathar_, Jan 14 2009 %t A154569 Accumulate[Table[(2n-1)^(2n+1)+(2n+1)^(2n-1),{n,20}]] (* _Harvey P. Dale_, Jun 05 2012 *) %Y A154569 Cf. A154682. %K A154569 nonn %O A154569 0,2 %A A154569 Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 12 2009 %E A154569 More terms from _Harvey P. Dale_, Jun 05 2012