12 Days of Christmas
357604
99 Bottles of Beer
797
Abundant Numbers
698
Christmas Trees
622
Collatz
872
Diamonds
317
Divisors
892
Fibonacci
926
Fizz Buzz
797829
Happy Numbers
389
Intersection
692
Kolakoski Sequence
643
Leap Years
755
Look and Say
528629
Niven Numbers (Long)
789
Ordinal Numbers
664
Pascal’s Triangle
639
Prime Numbers
660
Quine
930
Roman to Arabic
436
Seven Segment
639
Sierpiński Triangle
399
φ
191
√2
210