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A339577 a(n) = product of nonzero entries in row n of A235791. 1

%I

%S 1,2,3,4,10,12,21,24,72,80,110,180,234,504,840,896,1088,2160,2565,

%T 5400,7560,10560,12144,14784,25200,32760,84240,87360,97440,181440,

%U 200880,207360,380160,456960,1249500,1413720,1538460,1805760,2845440,3502080,3778560,7076160,7606872,15567552

%N a(n) = product of nonzero entries in row n of A235791.

%p a:= n-> mul(ceil((n+1)/k-(k+1)/2), k=1..floor((sqrt(8*n+1)-1)/2)):

%p seq(a(n), n=1..60);

%Y Cf. A235791, A060831, A024916, A237593.

%K nonn

%O 1,2

%A _N. J. A. Sloane_, Dec 19 2020

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Last modified August 7 23:50 EDT 2022. Contains 355995 sequences. (Running on oeis4.)