Lexicographically earliest sequence of distinct positive integers such that the product of two consecutive terms is always a factorial number.

A382067

Lexicographically earliest sequence of distinct positive integers such that the product of two consecutive terms is always a factorial number.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =8a(4) =15a(5) =48a(6) =105a(7) =384a(8) =945a(9) =3840a(10) =10395a(11) =46080a(12) =135135a(13) =645120a(14) =2027025a(15) =3072a(16) =155925a(17) =256a(18) =14175a(19) =2816a(20) =170100a(21) =36608a(22) =2381400a(23) =549120a(24) =11340a(25) =32a(26) =1260a(27) =4a(28) =6a(29) =20

External references