1,1

977090 occurs at PQ_142, whereas 1474739 occurs at PQ_514488 out of the first 1155900 PQs.

Table of n, a(n) for n=1..7.

Mark A. Herkommer, The Incredible Herkommer Number.

Mark A. Herkommer, Continued Fractions.

s = 0; Do[s = Prime[2n]/(Prime[2n + 1] + s), {n, 10^5, 1, -1}]; h = ContinuedFraction[s]; a = 0; k = 1; Do[ While[ h[[k]] ? a, k++ ]; Print[ h[[k]]], {n, 1, 30}]

Cf. A085826.

Sequence in context: A148454 A007743 A000687 * A150035 A000661 A150036

Adjacent sequences: A085824 A085825 A085826 * A085828 A085829 A085830

cofr,nonn

Robert G. Wilson v, Jul 06 2003

approved