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URL: https://oeis.org/A293363

⇱ A293363 - OEIS

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A293363
Least integer k such that k/2^n > log 2.
3
1, 2, 3, 6, 12, 23, 45, 89, 178, 355, 710, 1420, 2840, 5679, 11357, 22714, 45427, 90853, 181705, 363409, 726818, 1453635, 2907270, 5814540, 11629080, 23258160, 46516320, 93032640, 186065280, 372130559, 744261118, 1488522236, 2977044472, 5954088944
OFFSET
0,2
LINKS
FORMULA
a(n) = ceiling(r*2^n), where r = log 2.
a(n) = A293362(n) + 1. [corrected by Georg Fischer, Apr 16 2024]
MATHEMATICA
z = 120; r = Log[2];
Table[Floor[r*2^n], {n, 0, z}]; (* A293362 *)
Table[Ceiling[r*2^n], {n, 0, z}]; (* A293363 *)
Table[Round[r*2^n], {n, 0, z}]; (* A293364 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Oct 11 2017
STATUS
approved