A077810 - OEIS

%I #8 Sep 19 2021 19:19:03

%S 1,18,12,217,102,216,152,2340,1344,1836,1352,2604,1472,2736,1224,

%T 24211,10212,24192,13824,22134,17024,24336,10112,28080,15520,26496,

%U 14896,32984,11772,22032,11424,246078,109104,183816,147744,291648,135904,248832,115200,238680

%N Sum of divisors of numbers containing in their decimal representation only the digits 0 and 1.

%F a(n) = A000203(A007088(n)).

%e a(6) = A000203(A007088(6)) = A000203(110) = 1+2+5+10+11+22+55+110 = 216.

%Y Cf. A000203, A007088, A077809.

%K nonn,base

%O 1,2

%A _Reinhard Zumkeller_, Nov 16 2002