Abundant Numbers
522
Abundant Numbers (Long)
526
Arithmetic Numbers
446
Card Number Validation
514
Catalan Numbers
447
Collatz
577
Divisors
595
Evil Numbers (Long)
462
Factorial Factorisation
279
Farey Sequence
435
Fibonacci
528
Fizz Buzz
536
Gijswijt’s Sequence
417
Happy Numbers
336
Happy Numbers (Long)
463
Intersection
554
Inventory Sequence
405
ISBN
466
Jacobi Symbol
310
Kaprekar Numbers
522
Kolakoski Sequence
357
Leap Years
487
Leyland Numbers
270
N Queens
372
Niven Numbers
736
Niven Numbers (Long)
860
Odious Numbers
520
Ordinal Numbers
517
Pangram Grep
542
Pascal’s Triangle
271
Pernicious Numbers
330
Prime Numbers
519
Prime Numbers (Long)
611
Recamán
554
Reverse Polish Notation
311
Roman to Arabic
394
Rule 110
284
SI Units
410
√2
205