A396507 - OEIS

%I #32 Jul 09 2026 10:03:50

%S 21,327829,26107328109,2556136497943133,255076037079402009433,

%T 25502236839488123645241925,2550170000563961788041417806525,

%U 255016463611594176499029842988793305,25501640994885877067096645293217202805085,2550164045842236796525966169574718603651095001,255016404047361656196868236199225448802386324260881

%N Number of lattice points inside or on the 10-dimensional hypersphere Sum_{i=1..10} (x_i)^2 = 10^n.

%H Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SumofSquaresFunction.html">Sum of Squares Function</a>.

%F a(n) = A341399(10^n).

%Y Cf. A068785, A373881, A373882, A373883, A373884, A373885, A373896.

%Y Cf. A341399.

%K nonn,new

%O 0,1

%A _Seiichi Manyama_, Jul 09 2026