Number of n-digit base-5 deletable primes.

Terms

a(0) =2a(1) =6a(2) =14a(3) =32a(4) =69a(5) =156a(6) =377a(7) =855a(8) =2072a(9) =5131a(10) =12922a(11) =32619a(12) =83945a(13) =217305a(14) =571560a(15) =1517012a(16) =4056107