N(l) is the number of letters in each of the 12 zodiac signs:
Aries - 5Taurus - 6Gemini - 6Cancer - 6Leo - 3Virgo - 5Libra - 5Scorpio - 7Sagittarius - 11Capricorn - 9Aquarius - 8Pisces - 6
Not sure what N(c) is yet, though.
blackjack
flooble's webmaster puzzle