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A192257 1-sequence of reduction of (n^3) by x^2 -> x+1. 2
0, 8, 35, 163, 538, 1618, 4362, 11018, 26327, 60327, 133532, 287324, 603692, 1243044, 2515419, 5013979, 9863110, 19176814, 36900470, 70348470, 132999135, 249552143, 465041880, 861196248, 1585696248, 2904335648, 5293714067, 9605482003 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A192232 for definition of "k-sequence of reduction of [sequence] by [substitution]".

LINKS

Table of n, a(n) for n=1..28.

FORMULA

Empirical G.f.: x^2*(8-5*x+36*x^2-19*x^3+12*x^4-x^5)/(1-x)/(1-x-x^2)^4. [Colin Barker, Feb 10 2012]

MATHEMATICA

(See A192256.)

CROSSREFS

Cf. A192232, A192256.

Sequence in context: A098999 A263520 A223901 * A297609 A000426 A250889

Adjacent sequences:  A192254 A192255 A192256 * A192258 A192259 A192260

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jun 27 2011

STATUS

approved

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Last modified February 19 19:21 EST 2020. Contains 332047 sequences. (Running on oeis4.)