Abundant Numbers
521
Abundant Numbers (Long)
525
Arithmetic Numbers
445
Card Number Validation
514
Catalan Numbers
447
Collatz
577
Divisors
595
Evil Numbers (Long)
462
Factorial Factorisation
279
Farey Sequence
434
Fibonacci
528
Fizz Buzz
535
Gijswijt’s Sequence
417
Happy Numbers
335
Happy Numbers (Long)
463
Intersection
554
Inventory Sequence
405
ISBN
465
Jacobi Symbol
310
Kaprekar Numbers
522
Kolakoski Sequence
357
Leap Years
487
Leyland Numbers
270
N Queens
378
Niven Numbers
736
Niven Numbers (Long)
859
Odious Numbers
520
Ordinal Numbers
517
Pangram Grep
541
Pascal’s Triangle
270
Pernicious Numbers
330
Prime Numbers
518
Prime Numbers (Long)
611
Recamán
554
Reverse Polish Notation
311
Roman to Arabic
393
Rule 110
284
SI Units
410
√2
205