a(n) is the number of (2n+1)-digit palindromic primes that undulate.
A057332
a(n) is the number of (2n+1)-digit palindromic primes that undulate.
Terms
- a(0) =4a(1) =15a(2) =52a(3) =210a(4) =1007a(5) =5156a(6) =25571a(7) =133293a(8) =727082a(9) =3874464a(10) =21072166a(11) =117829671a(12) =654556778
External references
- oeis: A057332