OFFSET
0,1
COMMENTS
See A367360 for further information.
LINKS
Alois P. Heinz, Table of n, a(n) for n = 0..10000
MAPLE
a:= n-> parse(cat(""||(2*n)[-1], ""||(2*n+2)[1])):
seq(a(n), n=0..88); # Alois P. Heinz, Jan 03 2024
PROG
(Python)
def A368360(n): return (0, 20, 40, 60, 80)[n%5]+int(str(n+1<<1)[0]) # Chai Wah Wu, Jan 03 2024
CROSSREFS
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jan 02 2024
STATUS
approved