what is most special about a given integer

[Simon Colton]

Erich, Seqfans,

As I'm sure you know, the Encyclopedia is perfect for answering
questions about why numbers are special.

For example, the number 67 - which has no "special" qualities yet on
your web page - is:

prime (A000040)
odious (A000069)
lucky (A000959)
cyclic (A003277)
ludic (A003309)
magic (A004210)
fortunate (A005235)
deficient (A005408)
rhombic (A007970)