A236205 - OEIS

A236205

For k=2,3,...,10, read in decimal base-k representation of n. a(n) is the sum of numbers of divisors of all read numbers.

%I #9 Jan 27 2014 12:15:33

%S 9,20,20,33,24,42,28,48,42,38,36,60,31,63,49,64,33,88,31,66,59,58,31,

%T 98,39,58,67,80,42,79,30,100,57,56,64,145,36,76,52,88,50,146,26,102,

%U 90,53,32,132,56,80,58,81,40,140,44,136,50,67,36,120,32,64,114

%N For k=2,3,...,10, read in decimal base-k representation of n. a(n) is the sum of numbers of divisors of all read numbers.

%C In particular, for prime n's we have a subsequence: 20,20,24,28,36,31,33,31,31,42,30,36,50,26,32,40,36,32,...

%Y Cf. A000005, A235354.

%K nonn,base,less

%O 1,1

%A _Vladimir Shevelev_, Jan 20 2014

%E More terms from _Peter J. C. Moses_, Jan 20 2014