A001671 Powers of e rounded up.

1, 3, 8, 21, 55, 149, 404, 1097, 2981, 8104, 22027, 59875, 162755, 442414, 1202605, 3269018, 8886111, 24154953, 65659970, 178482301, 485165196, 1318815735, 3584912847, 9744803447, 26489122130, 72004899338, 195729609429, 532048240602, 1446257064292, 3931334297145, 10686474581525

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• T. D. Noe, Table of n, a(n) for n = 0..500

Crossrefs

Cf. A000149 (floor(e^n)), A000227 (round(e^n)).

Programs

Mathematica

Table[Ceiling[E^n], {n, 0, 50}] (* T. D. Noe, Aug 09 2012 *)

PARI

apply( A001671(n)=exp(n)\1+!!n, [0..30]) \\ An error message will say so if default(realprecision) must be increased, for large n. - M. F. Hasler, May 27 2018