# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a092314 Showing 1-1 of 1 %I A092314 #17 Jul 07 2019 03:17:41 %S A092314 1,1,4,2,7,6,11,8,18,16,24,23,34,36,51,48,66,74,90,98,126,137,164,182, %T A092314 220,247,294,324,380,434,496,556,650,728,835,938,1068,1204,1372,1531, %U A092314 1736,1956,2198,2462,2784,3104,3482,3890,4358,4864,5441,6048,6748,7516 %N A092314 Sum of smallest parts of all partitions of n into odd parts. %C A092314 a(n) = Sum_{k>=1} k*A116856(n,k). - _Emeric Deutsch_, Feb 24 2006 %H A092314 Vaclav Kotesovec, Table of n, a(n) for n = 1..2500 %F A092314 G.f.: Sum((2*n-1)*x^(2*n-1)/Product(1-x^(2*k-1), k = n .. infinity), n = 1 .. infinity). %F A092314 a(n) ~ exp(Pi*sqrt(n/3)) / (4 * 3^(1/4) * n^(3/4)). - _Vaclav Kotesovec_, Jul 07 2019 %e A092314 a(5)=7 because the partitions of 5 into odd parts are [5],[3,1,1] and [1,1,1,1,1] and the smallest parts add up to 5+1+1=7. %p A092314 g:=sum((2*n-1)*x^(2*n-1)/Product(1-x^(2*k-1),k=n..30),n=1..30): gser:=series(g,x=0,57): seq(coeff(gser,x^n),n=1..54); # _Emeric Deutsch_, Feb 24 2006 %t A092314 nmax = 50; Rest[CoefficientList[Series[Sum[(2*n - 1)*x^(2*n - 1) / Product[(1 - x^(2*k - 1)), {k, n, nmax}], {n, 1, nmax}], {x, 0, nmax}], x]] (* _Vaclav Kotesovec_, Jul 06 2019 *) %Y A092314 Cf. A092322, A092269, A092309, A092321, A092313, A092310, A092311, A092268. %Y A092314 Cf. A116856, A092322. %K A092314 easy,nonn %O A092314 1,3 %A A092314 _Vladeta Jovovic_, Feb 15 2004 %E A092314 More terms from Pab Ter (pabrlos(AT)yahoo.com), May 25 2004 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE