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.

9, 20, 20, 33, 24, 42, 28, 48, 42, 38, 36, 60, 31, 63, 49, 64, 33, 88, 31, 66, 59, 58, 31, 98, 39, 58, 67, 80, 42, 79, 30, 100, 57, 56, 64, 145, 36, 76, 52, 88, 50, 146, 26, 102, 90, 53, 32, 132, 56, 80, 58, 81, 40, 140, 44, 136, 50, 67, 36, 120, 32, 64, 114

Offset

1,1

Comments

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,...

Links

Table of n, a(n) for n=1..63.

Crossrefs

Cf. A000005, A235354.

Sequence in context: A064266 A284053 A205150 * A356317 A356319 A050682

Adjacent sequences: A236202 A236203 A236204 * A236206 A236207 A236208

Keyword

nonn,base,less

Author

Vladimir Shevelev, Jan 20 2014

Extensions

More terms from Peter J. C. Moses, Jan 20 2014

Status

approved