12 Days of Christmas
886
99 Bottles of Beer
530
Abundant Numbers
745
Abundant Numbers (Long)
884
Arithmetic Numbers
893
Catalan Numbers
969
Catalan’s Constant
724
Emirp Numbers
648
Emirp Numbers (Long)
690
Evil Numbers
980
Evil Numbers (Long)
972
Factorial Factorisation
643
Happy Numbers
454
Odious Numbers
977
Odious Numbers (Long)
969