30 (RANK = 3) /\ / \ / | \ / | \ / | \ / | \ / | \ / | \ / | \ / | \ 6 10 15 (RANK = 2) |\ / \ /| | \ / \ / | | \ / \ / | | \ / \ / | | / \ | | / \ / \ | | / \ / \ | | / \ / \ | 2 3 5 (RANK = 1) \ | / \ | / \ | / \ | / \ | / \ | / \ | / 1 (RANK = 0)Please note the ranking distribution: 1 of R = 0; 3 of R = 1; 3 of R = 2; 1 of R = 3. This distribution of 1, 3, 3, 1 is the third row of a Pascal or Binomial Table.