login
A109795
a(n)= n*(1+floor(n/10)).
0
1, 2, 3, 4, 5, 6, 7, 8, 9, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 120, 124, 128, 132, 136, 140, 144, 148, 152, 156, 200, 205, 210, 215, 220, 225, 230, 235, 240, 245, 300, 306, 312, 318, 324, 330, 336, 342, 348, 354, 420, 427
OFFSET
1,2
MATHEMATICA
Table[n(1+Floor[n/10]), {n, 70}] (* Harvey P. Dale, Jun 16 2024 *)
PROG
(PARI) a(n)= n*(1+floor(n/10)) \\ Michel Marcus, Jul 18 2013
CROSSREFS
Sequence in context: A362093 A052383 A110803 * A248500 A250041 A132029
KEYWORD
nonn
AUTHOR
Rolf Pleisch, Aug 18 2008
STATUS
approved