|
%I #67 Aug 09 2022 07:08:09
%S 1,1,2,4,8,20,40,120,288,864,1728,4800,9600,28800,84480,304128,608256,
%T 2322432,9289728,40642560,116121600,348364800,696729600,3185049600,
%U 8918138880,26754416640,149824733184,624269721600,1248539443200,6522981580800,26091926323200,107629196083200
%N a(n) is the number of positive divisors of A003266(n).
%H Amiram Eldar, <a href="/A272122/b272122.txt">Table of n, a(n) for n = 1..794</a>
%F a(n) = A000005(A003266(n)).
%F a(n+1) = 2*a(n) when n is in A069744.
%t a[n_] := DivisorSigma[0, Fibonorial[n]]; Array[a, 32] (* _Amiram Eldar_, Aug 09 2022 *)
%o (PARI) a(n) = numdiv(prod(k=1, n, fibonacci(k)));
%Y Cf. A000005, A000045, A003266, A027423, A063375, A069744, A260622.
%K nonn,easy
%O 1,3
%A _Altug Alkan_, Apr 28 2016
|
