12 Days of Christmas
20
809
868
99 Bottles of Beer
773
787
Abundant Numbers
716
761
Abundant Numbers (Long)
828
904
Arabic to Roman
608
670
Arithmetic Numbers
825
Arrows
389
428
Ascending Primes
409
446
ASCII Table
514
530
Card Number Validation
502
569
Catalan Numbers
498
Christmas Trees
717
744
Collatz
662
719
Cubes
599
632
Day of Week
737
801
Diamonds
519
553
Divisors
877
Emirp Numbers
67
559
595
Emirp Numbers (Long)
619
652
Emojify
297
Evil Numbers
560
784
789
854
Evil Numbers (Long)
760
833
Factorial Factorisation
328
406
Farey Sequence
464
Fibonacci
206695508742871
914946921618688623848595652934880678542600843717953826734519947925499908961818541741580632608485935606321879717807406845888657685678
Fizz Buzz
605
935
977
Foo Fizz Buzz Bar
936
987
Gijswijt’s Sequence
636
Happy Numbers
715
Happy Numbers (Long)
813
Intersection
493
549
Inventory Sequence
506
Kaprekar Numbers
284
Kolakoski Sequence
612
Leap Years
828558
80011844884889773
768
815
Leyland Numbers
780
Look and Say
626
Lucky Numbers
330
Minesweeper
528
533
Niven Numbers
698
Niven Numbers (Long)
764
Number Spiral
362
294
Odious Numbers
778
834
Odious Numbers (Long)
776
831
Pangram Grep
762
Partition Numbers
381
277
Pascal’s Triangle
836
Pernicious Numbers
663
Pernicious Numbers (Long)
666
Prime Numbers
623
Prime Numbers (Long)
659
Recamán
795
ROT13
380
426
Seven Segment
394
Sierpiński Triangle
254
Smith Numbers
460
Spelling Numbers
361
Tongue-twisters
679
Tower of Hanoi
246
Trinomial Triangle
771
United States
248
Vampire Numbers
470
Van Eck Sequence
582
π
63
303
324
τ
271
285
𝑒
353
370