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A192571 a(n) = sum(floor(sqrt(Bell(k))),k=0..n). 4
1, 2, 3, 5, 8, 15, 29, 58, 122, 267, 607, 1430, 3482, 8739, 22555, 59743, 162115, 449977, 1275856, 3690963, 10882913, 32674420, 99806496, 309930282, 977731801, 3131470488, 10176415237, 33537002728, 112026106459 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
MATHEMATICA
Table[Sum[Floor[Sqrt[BellB[k]]], {k, 0, n}], {n, 0, 100}]
Accumulate[Floor[Sqrt[BellB[Range[0, 30]]]]] (* Harvey P. Dale, May 03 2024 *)
PROG
(Maxima) makelist(sum(floor(sqrt(belln(k))), k, 0, n), n, 0, 28);
CROSSREFS
Sequence in context: A130476 A096592 A305370 * A215525 A192645 A050295
KEYWORD
nonn
AUTHOR
Emanuele Munarini, Jul 04 2011
STATUS
approved

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Last modified July 17 08:16 EDT 2024. Contains 374360 sequences. (Running on oeis4.)