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A126338 a(n) = numerator of sum of the reciprocals of all terms in rows 1 through n of table A126336. 3
1, 2, 5, 7, 13, 59, 413, 3881, 405331, 2845313, 17135191, 274111423, 4924469, 105188, 5188129, 3877908109, 984131084791, 152077180227073, 17159732095214477, 2637696371523184, 12185515744595363 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MATHEMATICA

f[l_List] := Append[l, ContinuedFraction[Plus @@ (1/# &) /@ Flatten[l]]]; Numerator@Table[Plus @@ (1/# &) /@ Flatten@Nest[f, {{1}}, n - 1], {n, 22}] (*Chandler*)

CROSSREFS

Cf. A126336, A126339.

Sequence in context: A053647 A023242 A164570 * A193718 A007438 A031457

Adjacent sequences:  A126335 A126336 A126337 * A126339 A126340 A126341

KEYWORD

frac,nonn

AUTHOR

Leroy Quet Dec 25 2006

EXTENSIONS

Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 26 2006

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.