Row 5 of A277710: Positions of 5's in A264977; positions of 10's in A277330.

Terms

a(0) =9a(1) =21a(2) =45a(3) =93a(4) =189a(5) =381a(6) =657a(7) =765a(8) =873a(9) =1317a(10) =1533a(11) =1749a(12) =2457a(13) =2637a(14) =3069a(15) =3501a(16) =4329a(17) =4917a(18) =5241a(19) =5277a(20) =5745a(21) =6141a(22) =6345a(23) =7005a(24) =8661a(25) =9561a(26) =9837a(27) =10017a(28) =10485a(29) =10557