1,2

The last term 19 corresponds to n=33900 in A114216: A114216(33899) = 123729 and 33900-th prime is 400559, hence 123729 + 400559 = 524288 = 2^19 and A114216(33900) = 1. Cf. A114217 values of n such that A114216(n) = 1.

Cf. A114216, A114217.

Sequence in context: A166983 A078611 A131450 this_sequence A111973 A133691 A161655

Adjacent sequences: A114215 A114216 A114217 this_sequence A114219 A114220 A114221

nonn

Zak Seidov (zakseidov(AT)yahoo.com), Nov 18 2005