OFFSET
1,1
COMMENTS
Partial sums of A062397. - Klaus Purath, Mar 18 2021
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = A002275(n) + n. - Michel Marcus, Mar 04 2018
a(n) = (10^n - 1)/9 + n. - Klaus Purath, Mar 18 2021
EXAMPLE
a(12) = 111111111111 + 12 = 111111111123.
MATHEMATICA
Table[FromDigits[PadRight[{}, n, 1]]+n, {n, 20}] (* Harvey P. Dale, May 15 2019 *)
PROG
(SageMath) [gaussian_binomial(n, 1, 10)+n for n in range(1, 20)] # Zerinvary Lajos, May 29 2009
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Amarnath Murthy, Jul 24 2005
EXTENSIONS
More terms from Joshua Zucker, May 08 2006
An incorrect recurrence was deleted by N. J. A. Sloane, Sep 13 2009
STATUS
approved
