A000039

[N. J. A. Sloane]

that's because they were entered on punched cards

and had to fit between columns 10 and 72, with a very limited character set

There's an article (somewhere on my home page) that i wrote for a Handbook
of Computer Science about how successive developments in computer hardware and
software paralleled the development of the EIS!

NJAS

 Try the new Integer Sequence WebCam at
    http://www.research.att.com/~njas/sequences/WebCam.html !
 
 Neil J. A. Sloane, njas at research.att.com,
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