0  1  2  3  4  5  6  7  8  9
0  ␀  ␁  ␂  ␃  ␄  ␅  ␆ Bel ␈ Tab
1  LF ␋  ␌  CR ␎  ␏  ␐  ␑  ␒  ␓
2  ␔  ␕  ␖  ␗  ␘  ␙  ␚  ␛  ␜  ␝
3  ␞  ␟     !  "  #  $  %  &  '
4  (  )  *  +  ,  -  .  /  0  1
5  2  3  4  5  6  7  8  9  :  ;
6  <  =  >  ?  @  A  B  C  D  E
7  F  G  H  I  J  K  L  M  N  O
8  P  Q  R  S  T  U  V  W  X  Y
9  Z  [  \  ]  ^  _  `  a  b  c
10 d  e  f  g  h  i  j  k  l  m
11 n  o  p  q  r  s  t  u  v  w
12 x  y  z  {  |  }  ~  ␡

Octal version

The code used to generate this table

ASCII has 95 printable characters, 94 excluding the space. The first printable character is the space at 32/0x20, the next is the exclamation mark ! at 33/0x21, and the last printable character is the tilde ~ at 126/0x7E.

#!/usr/bin/perl -CS
# Here's an old, base 10 only version of the table-generation code.
# Use perl -CS for UTF-8 output.

print "  ";
# The header row.
for (my $i = 0; $i < 10; $i++) {
  printf(" %d ", $i);
}
print "\n";

for (my $row = 0; $row < 13; $row++) {
  printf("%2d ", $row);
  for (my $column = 0; $column < 10; $column++) {
    $code = ($row * 10) + $column;
    if ($code >= 32) {
      printf(" %c ", $code);
    } else {
      # Use Unicode's "Control Pictures" block, U+2400 to U+243F
      $code += 0x2400;
      printf(" %c ", $code));
    }
  }
  print "\n";
}