OFFSET
1,3
MATHEMATICA
(See A213633.)
PROG
(Python)
def A213635(n): return n-next(filter(None, (n%d for d in range(2, n)))) if n>2 else 0 # Chai Wah Wu, Feb 22 2023
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 16 2012
STATUS
approved