12 Days of Christmas
21
375
402
99 Bottles of Beer
446
454
Abundant Numbers
727
845
Abundant Numbers (Long)
806
932
Arabic to Roman
485
489
Arithmetic Numbers
729
Arrows
419
423
Ascending Primes
399
407
ASCII Table
420
426
Card Number Validation
470
479
Catalan Numbers
512
Christmas Trees
646
659
Collatz
674
663
Cubes
498
457
Day of Week
653
667
Diamonds
462
471
Divisors
844
Emirp Numbers
74
473
491
Emirp Numbers (Long)
549
558
Emojify
272
Evil Numbers
583
810
756
870
Evil Numbers (Long)
814
854
Factorial Factorisation
276
332
Farey Sequence
423
Fibonacci
733526792930
9189819586407366838426326761,0009386875756348988029878957615589839435199801,000864587795600654628519947636276943735842439907938708727726
Fizz Buzz
615
881
898
Foo Fizz Buzz Bar
783
985
Gijswijt’s Sequence
542
Happy Numbers
565
Happy Numbers (Long)
709
Intersection
412
416
Inventory Sequence
495
Kaprekar Numbers
266
Kolakoski Sequence
622
Leap Years
880582
85113871891938788
750
827
Leyland Numbers
681
Look and Say
522
Lucky Numbers
327
Minesweeper
412
401
Niven Numbers
710
Niven Numbers (Long)
781
Number Spiral
389
248
Odious Numbers
819
851
Odious Numbers (Long)
835
854
Pangram Grep
663
Partition Numbers
419
267
Pascal’s Triangle
794
Pernicious Numbers
678
Pernicious Numbers (Long)
671
Prime Numbers
635
Prime Numbers (Long)
677
Recamán
733
ROT13
379
386
Seven Segment
295
Sierpiński Triangle
248
Smith Numbers
349
Spelling Numbers
218
Tongue-twisters
380
Tower of Hanoi
250
Trinomial Triangle
696
United States
187
Vampire Numbers
356
Van Eck Sequence
570
π
69
291
296
τ
257
261
𝑒
362
378