OFFSET
0,3
COMMENTS
a(n) is the position of the first copy of n in A014586.
LINKS
Nathan Fox, Subtraction Games with Infinite Subtraction Sets
Nathan Fox, Subtraction Games with Infinite Subtraction Sets [Local copy]
EXAMPLE
The sequence of nim-values for subtract-a-square (A014586) begins 0,1,0,1,2; the first position with value 2 is position 4 (starting from 0) so a(2)=4.
CROSSREFS
KEYWORD
nonn
AUTHOR
David Eppstein, Jan 09 2018
STATUS
approved