stirling's formula

18 LETTERS · STARTS WITH S

stirling's formula is a valid 18-letter word worth 22 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1T1I1R1L1I1N1G2'0S1F4O1R1M3U1L1A1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does stirling's formula mean?