A025739 - OEIS

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A025739

Index of 9^n within sequence of numbers of form 9^i*10^j.

1

1, 2, 4, 7, 11, 16, 22, 29, 37, 46, 56, 67, 79, 92, 106, 121, 137, 154, 172, 191, 211, 232, 253, 275, 298, 322, 347, 373, 400, 428, 457, 487, 518, 550, 583, 617, 652, 688, 725, 763, 802, 842, 883, 925, 967, 1010, 1054, 1099, 1145, 1192, 1240, 1289, 1339, 1390, 1442

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..55.

CROSSREFS

Sequence in context: A254835 A025725 A025732 * A000124 A152947 A212369

Adjacent sequences: A025736 A025737 A025738 * A025740 A025741 A025742

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved