Abundant Numbers
671
753
Arabic to Roman
440
ASCII Table
434
Catalan Numbers
253
Christmas Trees
621
742
Collatz
722
Cubes
400
472
Diamonds
394
426
Divisors
857
975
Emirp Numbers
414
Evil Numbers
741
824
Fibonacci
667
780
Fizz Buzz
348
707
635
Foo Fizz Buzz Bar
569
681
Fractions
549
Happy Numbers
429
Happy Numbers (Long)
545
Intersection
520
ISBN
559
Jacobi Symbol
431
Kolakoski Sequence
505
Leap Years
672
870
Leyland Numbers
713
Look and Say
496
Lucky Numbers
491
Lucky Tickets
228
Morse Decoder
255
Morse Encoder
241
Niven Numbers
746
555
Number Spiral
337
Odious Numbers
755
853
Odious Numbers (Long)
759
Ordinal Numbers
541
Pangram Grep
635
Pascal’s Triangle
467
Pernicious Numbers
381
Poker
247
Prime Numbers
588
663
Prime Numbers (Long)
629
713
Recamán
534
Rock-paper-scissors-Spock-lizard
324
Roman to Arabic
312
Rule 110
355
Sierpiński Triangle
505
335
Smith Numbers
402
Sudoku
197
Sudoku (Fill-in)
152
Vampire Numbers
534
Van Eck Sequence
505
λ
301
281
π
341
τ
347
φ
473
√2
450
𝑒
390