A004226 a(n) = 1000*log_10(n) rounded to the nearest integer.

0, 301, 477, 602, 699, 778, 845, 903, 954, 1000, 1041, 1079, 1114, 1146, 1176, 1204, 1230, 1255, 1279, 1301, 1322, 1342, 1362, 1380, 1398, 1415, 1431, 1447, 1462, 1477, 1491, 1505, 1519, 1531, 1544, 1556, 1568, 1580, 1591, 1602, 1613, 1623, 1633, 1643, 1653, 1663, 1672

Offset

1,2

Links

Paolo Xausa, Table of n, a(n) for n = 1..10000

Mathematica

Round[1000*Log10[Range[100]]] (* Paolo Xausa, Oct 16 2025 *)

Crossrefs

Cf. A004225, A004227.

Cf. A004220, A004223, A004229.

Sequence in context: A051306 A151609 A004225 * A297913 A298506 A282769

Adjacent sequences: A004223 A004224 A004225 * A004227 A004228 A004229

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Paolo Xausa, Oct 16 2025

Status

approved