Abundant Numbers
521
Abundant Numbers (Long)
525
Arithmetic Numbers
444
Card Number Validation
514
Catalan Numbers
447
Collatz
576
Divisors
594
Evil Numbers (Long)
462
Factorial Factorisation
279
Farey Sequence
434
Fibonacci
528
Fizz Buzz
535
Gijswijt’s Sequence
416
Happy Numbers
335
Happy Numbers (Long)
462
Intersection
554
Inventory Sequence
404
ISBN
464
Jacobi Symbol
310
Kaprekar Numbers
523
Kolakoski Sequence
356
Leap Years
487
Leyland Numbers
270
N Queens
377
Niven Numbers
735
Niven Numbers (Long)
859
Odious Numbers
520
Ordinal Numbers
517
Pangram Grep
541
Pascal’s Triangle
270
Pernicious Numbers
329
Prime Numbers
518
Prime Numbers (Long)
610
Recamán
553
Reverse Polish Notation
311
Roman to Arabic
393
Rule 110
284
SI Units
410
√2
205