Special Numbers
Figurate Numbers
compute a polygonal number
10th triangular number
5th hexagonal number
1250th decagonal number
determine whether a number belongs to a given class
is 76 a centered perfect pentagonal number?
can 56 things make a tetrahedral shape?
Perfect Numbers
determine whether a number belongs to a given class
Does the set of perfect numbers contain 18?
is 16 deficient?
is 4 a member of the superperfect numbers?
Pascal's Triangle
generate Pascal's triangle
7 rows of Pascal's triangle
compute Pascal's triangle modulo an integer