OFFSET
0,1
COMMENTS
The first occurrence of k appears at floor((k-1)^2/2), beginning with k=3. - Robert G. Wilson v, Mar 01 2015
If the sign inside the sqrt() is changed from "+" to "-", then the offset must be changed from 0 to 1 in order for the terms in the data to remain the same. - Robert G. Wilson v, Mar 01 2015
FORMULA
MATHEMATICA
Table[Floor[1+Sqrt[2n+1]], {n, 0, 100}] (* Harvey P. Dale, Feb 28 2015 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Giovanni Teofilatto, Mar 16 2005
EXTENSIONS
Definition corrected by Olivier Gérard & Harvey P. Dale, Feb 28 2015
Offset corrected by Robert G. Wilson v, Mar 01 2015
STATUS
approved