Group the natural numbers so that the n-th group contains the smallest still-available set of n numbers whose product is a square.

A076031

Group the natural numbers so that the n-th group contains the smallest still-available set of n numbers whose product is a square.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =3a(4) =4a(5) =12a(6) =5a(7) =6a(8) =7a(9) =210a(10) =9a(11) =10a(12) =11a(13) =13a(14) =1430a(15) =14a(16) =15a(17) =16a(18) =17a(19) =18a(20) =1785a(21) =19a(22) =20a(23) =21a(24) =22a(25) =23a(26) =24a(27) =168245a(28) =25a(29) =26

External references