1,2

Table of n, a(n) for n=1..70.

a(6)=12, since A133900(6)=72=2*2*2*3*3 and 2+2+2+3+3=12.

a(12)=19, since A133900(12)=864=2*2*2*2*2*3*3*3 and 2+2+2+2+2+3+3+3=19.

Cf. A000040, A100118, A046363, A133620, A133621, A133623, A133630, A133635.

Cf. A133872, A133880, A133890, A133900, A133910, A133911.

Sequence in context: A061408 A063287 A228358 * A276040 A090334 A272601

Adjacent sequences: A134328 A134329 A134330 * A134332 A134333 A134334

nonn

Hieronymus Fischer, Oct 20 2007

approved