Positive integers that can be expressed as the difference between a factorial and a double factorial.

A117125

Positive integers that can be expressed as the difference between a factorial and a double factorial.

Terms

    a(0) =0a(1) =1a(2) =3a(3) =4a(4) =5a(5) =9a(6) =15a(7) =16a(8) =21a(9) =22a(10) =23a(11) =72a(12) =105a(13) =112a(14) =117a(15) =118a(16) =119a(17) =336a(18) =615a(19) =672a(20) =705a(21) =712a(22) =717a(23) =718a(24) =719a(25) =1200a(26) =4095a(27) =4656a(28) =4935a(29) =4992

External references