1,3
Total sum of the second differences of the primes (A036263) to 2^n.
Marek Wolf, Conjectures
a[n_] := Prime[2^n+2]-Prime[2^n+1]-1; a/@Range[26]
Sequence in context: A011396 A036791 A010129 this_sequence A139391 A110635 A071170
Adjacent sequences: A073047 A073048 A073049 this_sequence A073051 A073052 A073053
nonn
Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 15 2002
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