login
a(n) is the number of divisors of A061799(n).
0

%I #26 Aug 23 2022 10:35:28

%S 1,2,3,4,6,6,8,8,9,10,12,12,16,16,16,16,18,18,20,20,24,24,24,24,30,30,

%T 30,30,30,30,32,32,36,36,36,36,40,40,40,40,48,48,48,48,48,48,48,48,60,

%U 60,60,60,60,60,60,60,60,60,60,60,64,64,64,64,72,72,72,72,72,72,72,72

%N a(n) is the number of divisors of A061799(n).

%C a(n) is the smallest term of A002183 that is >= n.

%F a(n) = A000005(A061799(n)).

%e a(5) = 6 because A061799(5) = 12 has 6 divisors.

%o (PARI) for(n=1, 100, my(s=n); while(numdiv(s)<n, s++); print1(numdiv(s), ", ")); \\ _Michel Marcus_, Jul 07 2022

%Y Cf. A000005, A061799, A002183.

%K nonn

%O 1,2

%A _J. Lowell_, Jul 07 2022