Number of nondecreasing -n..n vectors of length 5 whose dot product with some nonincreasing -n..n vector equals 5.

A226402

Number of nondecreasing -n..n vectors of length 5 whose dot product with some nonincreasing -n..n vector equals 5.

Terms

    a(0) =2a(1) =38a(2) =258a(3) =874a(4) =2674a(5) =5272a(6) =10554a(7) =18170a(8) =30814a(9) =48204a(10) =75312a(11) =108574a(12) =158900a(13) =219746a(14) =304160a(15) =405086a(16) =543242a(17) =698314a(18) =909178a(19) =1146250a(20) =1449110a(21) =1790744a(22) =2228894

External references