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A079610
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(5*n+1)*(5*n+3)*(5*n+5).
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0
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15, 480, 2145, 5760, 12075, 21840, 35805, 54720, 79335, 110400, 148665, 194880, 249795, 314160, 388725, 474240, 571455, 681120, 803985, 940800, 1092315, 1259280, 1442445, 1642560, 1860375, 2096640, 2352105, 2627520, 2923635, 3241200, 3580965, 3943680
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| R. Tijdeman, Some applications of Diophantine approximation, pp. 261-284 of Surveys in Number Theory (Urbana, May 21, 2000), ed. M. A. Bennett et al., Peters, 2003.
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FORMULA
| Sum_{n>=0} 1/a(n) is transcendental (cf. Tijdeman).
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MATHEMATICA
| Times@@@(#+{1, 3, 5}&/@(5*Range[0, 50])) (* From Harvey P. Dale, Jan 01 2011 *)
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CROSSREFS
| Sequence in context: A005815 A120600 A129892 * A013433 A013435 A151816
Adjacent sequences: A079607 A079608 A079609 * A079611 A079612 A079613
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KEYWORD
| nonn,changed
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 28 2003
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