A171448 Sequence whose generating function is expressible as a prime-related continued fraction.

1, 2, 6, 24, 114, 612, 3648, 23928, 171534, 1336416, 11269476, 102661188, 1010777052, 10778107752, 124698353796, 1564720622004, 21217109251374, 308917754417352, 4793408454081468, 78708576907763868, 1359861042837591204

Offset

0,2

Comments

Hankel transform is the Chernoff sequence A006939.

Links

Table of n, a(n) for n=0..20.

Formula

G.f.: 1/(1-2x/(1-x/(1-3x/(1-x/(1-5x/(1-x/(1-7x/(1-x/(1-11x/(1-.... (continued fraction);

G.f.: 1/(1-2x-2x^2/(1-4x-3x^2/(1-6x-5x^2/(1-8x-7x^2/(1-12x-11x^2/(1- ... (continued fraction).

Crossrefs

Sequence in context: A134664 A375913 A324133 * A068199 A189846 A189283

Adjacent sequences: A171445 A171446 A171447 * A171449 A171450 A171451

Keyword

easy,nonn

Author

Paul Barry, Dec 09 2009

Status

approved