OFFSET
1,2
EXAMPLE
26 -> 2^6 = 64 -> 6^4 = 1296 -> 1^2*9^6 = 531441 -> 5^3*1^4*4^1 = 500 -> 5^0*0 = 0.
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Martin Renner, Jul 22 2019
STATUS
approved