# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a002292 Showing 1-1 of 1 %I A002292 M5085 N2201 #23 Feb 14 2021 02:16:15 %S A002292 1,20,74,24,157,124,478,1480,1198,3044,480,184,2351,1720,3282,5728, %T A002292 2480,1776,10326,9560,8886,9188,11618,23664,16231,23960,11686,9176, %U A002292 60880,16876,18482,3768,35372,15532,3680,31960,4886,47020,2976,44560 %N A002292 Related to representation as sums of squares. %C A002292 This is A225923 without the minus signs. - _Michael Somos_, Aug 09 2018 %D A002292 J. W. L. Glaisher, On the representation of a number as sum of 2,4,6,8... squares, Quart. J. Math. 38 (1907), 1-62 (see p. 56). %D A002292 N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). %D A002292 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). %H A002292 Masao Koike, Modular forms on non-compact arithmetic triangle groups, Unpublished manuscript [Extensively annotated with OEIS A-numbers by N. J. A. Sloane, Feb 14 2021. I wrote 2005 on the first page but the internal evidence suggests 1997.] %F A002292 a(n) = abs(A225923(n)). - _Michael Somos_, Aug 09 2018 %Y A002292 Cf. A225923. %K A002292 nonn %O A002292 0,2 %A A002292 _N. J. A. Sloane_ # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE