|
| |
|
|
A037028
|
|
Prime closest to e^n.
|
|
4
| |
|
|
2, 3, 7, 19, 53, 149, 401, 1097, 2971, 8101, 22027, 59879, 162751, 442399, 1202603, 3269011, 8886109, 24154957, 65659969, 178482289, 485165237, 1318815713, 3584912833, 9744803443, 26489122147, 72004899319
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 0,1
|
|
|
LINKS
| Charles R Greathouse IV, Table of n, a(n) for n = 0..500
|
|
|
MATHEMATICA
| NextPrime[ n_Integer ] := Module[ {k = n + 1}, While[ ! PrimeQ[ k ], k++ ]; Return[ k ] ]; PrevPrime[ n_Integer ] := Module[ {k = n - 1}, While[ ! PrimeQ[ k ], k-- ]; Return[ k ] ]; Do[ a = Round[ N[ E^n ] ]; b = NextPrime[ Round[ N[ E^n ] ] - 1 ]; c = PrevPrime[ Round[ N[ E^n ] ] + 1 ]; If[ b - N[ E^n ] > N[ E^n ] - c, Print[ c ], Print[ b ] ], {n, 0, 25} ]
|
|
|
CROSSREFS
| Sequence in context: A091410 A122724 A033844 * A052919 A005807 A167422
Adjacent sequences: A037025 A037026 A037027 * A037029 A037030 A037031
|
|
|
KEYWORD
| nonn
|
|
|
AUTHOR
| G. L. Honaker, Jr. (honak3r(AT)gmail.com)
|
|
|
EXTENSIONS
| Corrected and extended by Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 16 2000
|
| |
|
|
