

A080021


log(n) is closer to an integer than is log(m) for any m with 2<=m<n.


3



2, 3, 7, 20, 148, 403, 1096, 1097, 2980, 2981, 8103, 59874, 162755, 442413, 1202604, 3269017, 8886110, 8886111, 24154952, 24154953, 65659969, 178482301, 3584912846, 9744803446, 26489122130, 72004899337, 195729609428
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

Every term is floor(e^k)+r for some integers k and r with k>=1 and 1 <= r <= 1.


REFERENCES

Suggested by Leroy Quet, Jan 19 2003


LINKS

Table of n, a(n) for n=1..27.


EXAMPLE

log(2) = 10.306..., log(3) = 1+0.0986..., log(7) = 20.0540..., log(20) = 30.00426...


PROG

(PARI) lista(nn) = {flmin = 1; for (i=2, nn, li = log(i); fli = abs(round(li)  li); if (fli < flmin, print1(i, ", "); flmin = fli; ); ); } \\ Michel Marcus, Aug 29 2013


CROSSREFS

Cf. A080022, A080023.
Sequence in context: A222776 A222890 A011968 * A032313 A032223 A002863
Adjacent sequences: A080018 A080019 A080020 * A080022 A080023 A080024


KEYWORD

nonn,changed


AUTHOR

Dean Hickerson (dean.hickerson(AT)yahoo.com), Jan 20 2003


EXTENSIONS

More terms from Don Reble (djr(AT)nk.ca), Jan 20 2003


STATUS

approved



