Finds n terms starting at m.
Inverse aliquot function
Finds all k such that s(k) = i.
Primitive Pythagorean triples
Lists all primitive Pythagorean triples containing a given number.
Lists all Pythagorean triples containing a given number. Singles out the primitive ones.
Sum of 4 squares
Lists all ways to write a number as a sum of 4 squares.
Sum of 9 cubes
Lists all ways to write a number as a sum of 9 cubes.
Difference of 2 squares
Lists all ways to write a number as a difference of 2 squares.
Sum of 2 odd primes
Lists all ways to write an even number as a sum of 2 primes.
Sum of 3 odd primes
Lists all ways to write an odd number as a sum of 3 primes.
Reverse and add algorithm
Iterates this procedure until a palindrome is reached or the numbers get too large.
Calculates the numerical value of English words and phrases.
Wolfram elementary automata
Displays behavior on a single black cell.
Strictly ascending primes
Lists them all in your choice of base.
Inverse of phi
Computes the inverse totient of k for (even) k between m and n.
Converts to roman numerals. Gives the alphabetic value of the result. For n numbers starting at m.