OFFSET
1,2
COMMENTS
A self-describing sequence (from the digit sum point of view).
LINKS
John Cerkan, Table of n, a(n) for n = 1..5000
John Cerkan, Python 2.7 program
Eric Weisstein's World of Mathematics, Digit Sum
EXAMPLE
The two number-columns hereunder are the sequence itself:
1 integer with digit sum 1 followed by
2 integers with digit sum 2 followed by
11 integers with digit sum 11 followed by
29 integers with digit sum 29 followed by
38 integers with digit sum 38 followed by
47 integers with digit sum 47, etc.
CROSSREFS
KEYWORD
base,easy,nonn,uned
AUTHOR
Eric Angelini, Mar 24 2008
EXTENSIONS
a(28) inserted by John Cerkan, Jun 06 2017
STATUS
approved