The number s(j)=C(2j-2,j-1) such that n divides s(k)-s(j)>0, where k is the least positive integer for which such a j exists.

A205013

The number s(j)=C(2j-2,j-1) such that n divides s(k)-s(j)>0, where k is the least positive integer for which such a j exists.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =2a(4) =1a(5) =2a(6) =6a(7) =6a(8) =2a(9) =20a(10) =924a(11) =252a(12) =70a(13) =6a(14) =252a(15) =6a(16) =2a(17) =2a(18) =1a(19) =252a(20) =252a(21) =924a(22) =1a(23) =252a(24) =20a(25) =70a(26) =6a(27) =252a(28) =20a(29) =252

External references