Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A pentatope number is a number in the fifth cell of any row of Pascal''s triangle starting with the 5-term row 1 4 6 4 1 either from left to right or from right to left.The first few numbers of this kind are : 1, 5, 15, 35, 70, 126, 210, 330, 495, 715, 1001, 1365 (sequence A000332 in OEIS) Pentatope numbers belong in the class of figurate numbers, which can be represented as regular, discrete geometric patterns.