A301411 G.f. A(x) satisfies: A(x) = 1/(1 - x*A(x) - x*A(x)^2/(1 - x*A(x)^3 - x*A(x)^4/(1 - x*A(x)^5 - x*A(x)^6/(1 - ...)))), a continued fraction.

1, 2, 12, 108, 1192, 14848, 200432, 2866752, 42853392, 663565616, 10579117744, 172911177584, 2888445810864, 49203276384624, 853289008064304, 15047071017842928, 269585532569464752, 4904425594952671344, 90570287337341726256, 1697589267552262891760, 32295562088556275945136

Offset

0,2

Links

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

Example

G.f. A(x) = 1 + 2*x + 12*x^2 + 108*x^3 + 1192*x^4 + 14848*x^5 + 200432*x^6 + 2866752*x^7 + 42853392*x^8 + ...

Crossrefs

Cf. A088352, A092869, A192737, A301410.

Sequence in context: A319291 A265132 A080446 * A217803 A177409 A360950

Adjacent sequences: A301408 A301409 A301410 * A301412 A301413 A301414

Keyword

nonn

Author

Ilya Gutkovskiy, Mar 20 2018

Status

approved