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A091464 Sum from 2 to a(n) of 1/(3k +2) exceeds n. 4
17, 323, 6506, 130664, 2624438, 52713275, 1058774426 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

FORMULA

The next term is approximately the previous term * e^3.

MATHEMATICA

s = 0; k = 2; Do[ While[s = N[s + 1/k, 24]; s <= n, k += 3]; Print[k]; k += 3, {n, 1, 7}]

CROSSREFS

Cf. A002387, A056053, A056054, A091462, A091463.

Sequence in context: A196455 A217960 A221583 * A015693 A029535 A099275

Adjacent sequences:  A091461 A091462 A091463 * A091465 A091466 A091467

KEYWORD

nonn

AUTHOR

Robert G. Wilson v, Jan 12 2004

STATUS

approved

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Last modified December 3 18:47 EST 2016. Contains 278745 sequences.