A067923 Engel expansion of log(23).

1, 1, 1, 8, 12, 135, 199, 378, 600, 1836, 4897, 8198, 8993, 84887, 450287, 892157, 5053447, 5183243, 15350505, 19963471, 31631271, 37655416, 2138752269, 4805947342, 14508700588, 27508373127, 28635924075, 30814114095, 32073629885, 961160400603, 3607716972786

Offset

1,4

Links

Table of n, a(n) for n=1..31.

Prog

(PARI) \\ a(1)=1 and for n>1:
s=log(23); for(i=1, 30, s=s*ceil(1/s)-1; print1(ceil(1/s), ", "); );

Crossrefs

See A006784 for explanation of Engel expansions. Log(23) is the first number of the form Log(n), n an integer, for which it is not known whether a BBP formula exists.

Cf. A016646.

Sequence in context: A180922 A083128 A196077 * A258780 A228663 A377681

Adjacent sequences: A067920 A067921 A067922 * A067924 A067925 A067926

Keyword

easy,nonn

Author

Benoit Cloitre, Mar 03 2002

Status

approved