a(n) = (1/5760)*(n + 5)*(15*n^7 + 225*n^6 + 1265*n^5 + 3707*n^4 + 7120*n^3 + 4900*n^2 - 6480*n + 27648).

A290127

a(n) = (1/5760)*(n + 5)*(15*n^7 + 225*n^6 + 1265*n^5 + 3707*n^4 + 7120*n^3 + 4900*n^2 - 6480*n + 27648).

Terms

    a(0) =40a(1) =252a(2) =1457a(3) =6168a(4) =20773a(5) =59279a(6) =149271a(7) =340821a(8) =719187a(9) =1422247a(10) =2663718a(11) =4763315a(12) =8185110a(13) =13585456a(14) =21871946a(15) =34274982a(16) =52433634a(17) =78497574a(18) =115246975a(19) =166232370a(20) =235936571a(21) =329960853a(22) =455237713a(23) =620272619a(24) =835417269a(25) =1113176985a(26) =1468554972a(27) =1919436277

External references