A192570 a(n) = floor(sqrt(Bell(n))).

1, 1, 1, 2, 3, 7, 14, 29, 64, 145, 340, 823, 2052, 5257, 13816, 37188, 102372, 287862, 825879, 2415107, 7191950, 21791507, 67132076, 210123786, 667801519, 2153738687, 7044944749, 23360587491, 78489103731

Offset: 0

Author

Emanuele Munarini, Jul 04 2011

Keywords

• nonn

Crossrefs

Cf. A000110.

Programs

Mathematica

Table[Floor[Sqrt[BellB[n]]],{n,0,100}]

Maxima

makelist(floor(sqrt(belln(n))),n,0,28);