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A152623 Decimal expansion of 3/2. 5
1, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Sum of the inverses of the tetrahedral numbers (A000292). - Michael B. Porter, Nov 27 2017

LINKS

Table of n, a(n) for n=1..99.

EXAMPLE

1.5000000000000000000000000000000000000000000000000000000000...

CROSSREFS

Cf. A000292 (tetrahedral numbers).

Sums of inverses: A002117 (cubes), A175577 (octahedral numbers), A295421 (dodecahedral numbers), A175578 (icosahedral numbers).

Sequence in context: A336587 A336586 A241471 * A020761 A341881 A281462

Adjacent sequences:  A152620 A152621 A152622 * A152624 A152625 A152626

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane, Oct 30 2009

STATUS

approved

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Last modified April 18 02:38 EDT 2021. Contains 343072 sequences. (Running on oeis4.)