Scribbles

Project Euler #20: Factorial digit sum
Project Euler #19: Counting Sundays
Project Euler #18: Maximum path sum I
Project Euler #17: Number letter counts
Project Euler #16: Power digit sum
Project Euler #15: Lattice paths
Project Euler #14: Longest Collatz sequence
Project Euler #13: Large sum
Project Euler #12: Highly divisible triangular number
Project Euler #11: Largest product in a grid
Project Euler #10: Summation of primes
Project Euler #9: Special Pythogorean triplet
Project Euler #8: Largest product in a series
Project Euler #7: 10001st prime
Project Euler #6: Sum square difference
Project Euler #5: Smallest multiple
Project Euler #4: Largest palindrome product
Project Euler #3: Largest prime factor