Number of ways to write n as an ordered sum of 7 nonzero decimal palindromes.

Terms

a(0) =1a(1) =7a(2) =28a(3) =84a(4) =210a(5) =462a(6) =924a(7) =1716a(8) =3003a(9) =4998a(10) =7966a(11) =12222a(12) =18123a(13) =26054a(14) =36408a(15) =49560a(16) =65835a(17) =85470a(18) =108591a(19) =135163a(20) =164976a(21) =197632a(22) =232547a(23) =268968a(24) =306005a(25) =342678a(26) =377979a(27) =410914a(28) =440630a(29) =466417