%I #10 Sep 08 2022 08:46:18
%S 1,90,4851,204156,7413705,244222650,7511839335,219683466288,
%T 6183023199255,168899639028120,4505395859893071,117891537949758600,
%U 3036500678480436531,77190387796530738576,1940723247304668029175,48339506285032758609456,1194448077521704400002650
%N a(n) = binomial(9*n, n-9).
%C Row 9*n, column n-9 of A007318. - _Felix Fröhlich_, Feb 05 2017
%t Table[Binomial[9 n, n - 9], {n, 9, 25}]
%o (Magma) [Binomial(9*n, n-9): n in [9..30]];
%o (PARI) a(n) = binomial(9*n, n-9) \\ _Felix Fröhlich_, Feb 05 2017
%Y Cf. sequences with formula binomial(k*n, n-k): A002694 (k=2), A004321 (k=3), A004334 (k=4), A004347 (k=5), A004361 (k=6), A004375 (k=7), A004389 (k=8), this sequence (k=9).
%K nonn,easy
%O 9,2
%A _Vincenzo Librandi_, Feb 02 2017