Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2 or 3.

Terms

a(0) =2a(1) =11a(2) =45a(3) =81a(4) =256a(5) =364a(6) =738a(7) =1149a(8) =1905a(9) =2401a(10) =4096a(11) =4912a(12) =7172a(13) =9297a(14) =12685a(15) =14641a(16) =20736a(17) =23436a(18) =30344a(19) =36455a(20) =45633a(21) =50625a(22) =65536a(23) =71872a(24) =87438a(25) =100767a(26) =120141a(27) =130321a(28) =160000a(29) =172300