OFFSET
0,2
FORMULA
MATHEMATICA
Total[{First[IntegerDigits[#]], Last[IntegerDigits[#]]}]&/@Range[90] (* Harvey P. Dale, Aug 21 2018 *)
PROG
(PARI) apply( {A088133(n)=n\10^logint(n+!n, 10)+n%10}, [0..99]) \\ M. F. Hasler, Apr 22 2024
(Python) list(map(A088133 := lambda n: int(str(n)[0])+n%10, range(99))) # M. F. Hasler, Apr 22 2024
CROSSREFS
KEYWORD
easy,nonn,base
AUTHOR
Zak Seidov, Sep 20 2003
EXTENSIONS
Extended to a(0) = 0 by M. F. Hasler, Apr 22 2024
STATUS
approved