A030880 a(n) = floor( exp(11/18)*n! ).

1, 3, 11, 44, 221, 1326, 9286, 74288, 668598, 6685982, 73545804, 882549650, 11473145461, 160624036454, 2409360546814, 38549768749031, 655346068733532, 11796229237203591, 224128355506868246, 4482567110137364921, 94133909312884663355, 2070946004883462593813

Offset: 1

Author

Simon Plouffe

Keywords

• nonn

Programs

Magma

[Floor(Exp(11/18)*Factorial(n)): n in [1..20]]; // Bruno Berselli, May 13 2015

Extensions

More terms from Bruno Berselli, May 13 2015