Number of length n 1..(3+1) arrays with every leading partial sum divisible by 2, 3 or 5.

A254822

Number of length n 1..(3+1) arrays with every leading partial sum divisible by 2, 3 or 5.

Terms

    a(0) =3a(1) =10a(2) =30a(3) =79a(4) =197a(5) =496a(6) =1262a(7) =3476a(8) =10400a(9) =30718a(10) =86549a(11) =244255a(12) =709450a(13) =2051001a(14) =5691742a(15) =15102696a(16) =39115080a(17) =102078824a(18) =275987219a(19) =775822274a(20) =2223250672a(21) =6380375677a(22) =18280341752a(23) =52328438849a(24) =148625082422a(25) =414077248266

External references