Number of length n 1..(2+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11.

A254941

Number of length n 1..(2+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11.

Terms

    a(0) =2a(1) =6a(2) =18a(3) =54a(4) =148a(5) =342a(6) =705a(7) =1326a(8) =2326a(9) =4173a(10) =8361a(11) =18604a(12) =41296a(13) =85118a(14) =169747a(15) =352477a(16) =758153a(17) =1594105a(18) =3165858a(19) =5975091a(20) =11145201a(21) =21712333a(22) =45705877a(23) =102683622a(24) =237061239a(25) =543357180a(26) =1209463533a(27) =2598223818a(28) =5445429743

External references