OFFSET
0,5
COMMENTS
Same recursion as Knuth numbers A007448 but different initial value.
PROG
(PARI) {a(n) = if( n<1, 0, n--; 1 + min( a(n\2)*2, a(n\3)*3 ))};
CROSSREFS
KEYWORD
nonn
AUTHOR
Michael Somos, May 12 2018
STATUS
approved