
Seq prints a sequence of numbers, one per line, from first (default
1) to as near last as possible, in increments of incr (default
1). The loop is:
 
for(val = min; val <= max; val += incr) print val;

The numbers are interpreted as floating point.
Normally integer values are printed as decimal integers. The options
are
–fformat Use the print(2)–style format print for printing each (floating
point) number. The default is %g.
–w Equalize the widths of all numbers by padding with leading zeros
as necessary. Not effective with option –f, nor with numbers in
exponential notation.
