1,1

Note that there are no such primes in any range ]2^(2n-1),2^2n], as all even-length binary palindromes are divisible by three (cf. A048702).

Ratio a(n)/A036378(2n) converges as follows: 1, 0.4, 0.230769, 0.069767, 0.051095, 0.025862, 0.014268, 0.007006, 0.00461, 0.00193, 0.00101, 0.000487, 0.000235, 0.000127, 0.000061, 0.000029

A. Karttunen, J. Moyer: C-program for computing the initial terms of this sequence

Index entries for sequences related to occurrences of various subsets of primes in range ]2^n,2^(n+1)]

Bisection of the first diagonal of triangle A095759. Cf. also A095731.

Sequence in context: A133076 A032060 A153903 this_sequence A110880 A095060 A094117

Adjacent sequences: A095738 A095739 A095740 this_sequence A095742 A095743 A095744

nonn

Antti Karttunen (his-firstname.his-surname(AT)iki.fi), Jun 12 2004