A243991 - OEIS

A243991

Decimal expansion of sum of reciprocals of Bell numbers for n>0.

1, 7, 9, 2, 2, 6, 3, 0, 0, 4, 8, 5, 8, 5, 6, 3, 3, 0, 6, 0, 2, 6, 0, 8, 4, 3, 3, 9, 6, 7, 7, 3, 4, 9, 6, 2, 7, 2, 9, 8, 4, 7, 0, 8, 3, 7, 4, 7, 6, 1, 4, 9, 9, 6, 0, 4, 1, 0, 0, 4, 7, 9, 7, 9, 1, 6, 7, 2, 8, 3, 7, 4, 8, 3, 8, 1, 8, 7, 2, 4, 9, 8, 7, 3, 6, 9, 3, 6, 7, 8, 9, 0, 3, 8, 7, 1, 2, 4, 7, 4, 7, 2

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OFFSET

1,2

COMMENTS

1.792263004858...

LINKS

Table of n, a(n) for n=1..102.

MAPLE

with(combinat, bell): evalf(sum(1/bell(n), n = 1..infinity), 120); # Vaclav Kotesovec, Jan 30 2015

CROSSREFS

Cf. A000110, A078506, A079586, A093540.

Sequence in context: A202323 A021562 A337608 * A021852 A154197 A094148

Adjacent sequences: A243988 A243989 A243990 * A243992 A243993 A243994

KEYWORD

nonn,cons

AUTHOR

Franklin T. Adams-Watters, Jun 17 2014

STATUS

approved