12 Days of Christmas
19
369
400
99 Bottles of Beer
433
450
Abundant Numbers
683
831
Abundant Numbers (Long)
755
910
Arabic to Roman
457
478
Arithmetic Numbers
712
Arrows
396
413
Ascending Primes
371
394
ASCII Table
400
418
Card Number Validation
435
461
Catalan Numbers
498
Christmas Trees
612
648
Collatz
650
650
Cubes
476
450
Day of Week
604
642
Diamonds
437
461
Divisors
831
Emirp Numbers
67
447
483
Emirp Numbers (Long)
516
542
Emojify
268
Evil Numbers
560
763
709
854
Evil Numbers (Long)
760
833
Factorial Factorisation
261
322
Farey Sequence
409
Fibonacci
695508743871
895946921601688623800595652934880638542600844717941827734520948925499909961818541741580632608485935606273881717807406848888657685678
Fizz Buzz
603
847
891
Foo Fizz Buzz Bar
748
971
Gijswijt’s Sequence
525
Happy Numbers
554
Happy Numbers (Long)
690
Intersection
384
403
Inventory Sequence
479
Jacobi Symbol
479
Kaprekar Numbers
257
Kolakoski Constant
58
Kolakoski Sequence
601
Leap Years
826556
79811843854888737
714
815
Leyland Numbers
664
ln 2
665
Look and Say
510
Lucky Numbers
318
Minesweeper
381
382
Morse Decoder
175
Niven Numbers
697
Niven Numbers (Long)
762
Number Spiral
362
240
Odious Numbers
767
834
Odious Numbers (Long)
776
831
Pangram Grep
646
Partition Numbers
381
258
Pascal’s Triangle
775
Pernicious Numbers
663
Pernicious Numbers (Long)
653
Prime Numbers
623
Prime Numbers (Long)
659
Recamán
718
Rijndael S-box
112
ROT13
349
370
Seven Segment
288
Sierpiński Triangle
243
Smith Numbers
339
Spelling Numbers
211
Tongue-twisters
378
Tower of Hanoi
242
Trinomial Triangle
665
United States
183
Vampire Numbers
347
Van Eck Sequence
551
Zeckendorf Representation
513
π
63
276
384
τ
243
358
φ
683
√2
705
𝑒
343
699