Number of permutations of floor(i*3/2), i=0..n-1, with all sums of 4 adjacent terms unique.

A152333

Number of permutations of floor(i*3/2), i=0..n-1, with all sums of 4 adjacent terms unique.

Terms

    a(0) =1a(1) =2a(2) =6a(3) =24a(4) =120a(5) =640a(6) =4092a(7) =27504a(8) =223752a(9) =1941032a(10) =18688776a(11) =193458120a(12) =2192678402a(13) =26386639934a(14) =341945010834

External references