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A061464
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Denominator of 1 + 1/(2^2) + 1/(3^3) + ... 1/(n^n).
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2
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1, 1, 4, 108, 6912, 21600000, 583200000, 480290277600000, 31476303632793600000, 16727798278915463577600000, 52274369621610823680000000000, 14914487726878692033020558868480000000000
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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EXAMPLE
| 1, 5/4, 139/108, 8923/6912,...
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MAPLE
| summ := 0; for n from 1 to 15 do printf("%d ", denom(summ)); if (1 = 1) then summ := summ + 1/n^n: end if; od;
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MATHEMATICA
| Join[{1}, Denominator/@Table[Sum[1/i^i, {i, n}], {n, 12}]] (* From Harvey P. Dale, July 03 2011 *)
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CROSSREFS
| Cf. A061463.
Sequence in context: A123056 A024263 A090205 * A107048 A185702 A002109
Adjacent sequences: A061461 A061462 A061463 * A061465 A061466 A061467
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KEYWORD
| nonn,frac,easy
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), May 04 2001
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EXTENSIONS
| More terms from Winston C. Yang (winston(AT)cs.wisc.edu), May 19 2001
a(12) from Harvey P. Dale, July 3 2011
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