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A054487
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(3n+4)*C(n+7, 7)/4.
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2
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1, 14, 90, 390, 1320, 3762, 9438, 21450, 45045, 88660, 165308, 294372, 503880, 833340, 1337220, 2089164, 3187041, 4758930, 6970150, 10031450, 14208480, 19832670, 27313650, 37153350, 49961925, 66475656, 87576984, 114316840
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| I. Adler, Three Diophantine equations - Part II, Fib. Quart., 7 (1969), pps. 181-193.
A. H. Beiler, Recreations in the Theory of Numbers, Dover, N.Y., 1964, pps. 122-125, 194-196.
E. I. Emerson, Recurrent Sequences in the Equation DQ^2=R^2+N, Fib. Quart., 7 (1969), pps. 231-242.
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (9,-36,84,-126,126,-84,36,-9,1).
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FORMULA
| G.f.: (1+5*x)/(1-x)^9.
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CROSSREFS
| Cf. A034265.
Cf. A093563 ((6, 1) Pascal, column m=8).
Sequence in context: A195267 A077538 A114242 * A200191 A047639 A202291
Adjacent sequences: A054484 A054485 A054486 * A054488 A054489 A054490
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KEYWORD
| easy,nonn
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AUTHOR
| Barry E. Williams, May 06 2000
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EXTENSIONS
| Corrected and extended by James A. Sellers (sellersj(AT)math.psu.edu), May 10 2000
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