login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A025734
Index of 9^n within sequence of numbers of form 2^i*9^j.
0
1, 5, 12, 22, 35, 51, 71, 94, 120, 149, 181, 216, 255, 297, 342, 390, 441, 495, 553, 614, 678, 745, 815, 888, 965, 1045, 1128, 1214, 1303, 1395, 1491, 1590, 1692, 1797, 1905, 2016, 2131, 2249, 2370, 2494, 2621, 2751, 2885, 3022, 3162, 3305, 3451, 3600, 3753
OFFSET
1,2
CROSSREFS
Sequence in context: A373171 A000326 A022795 * A153818 A069627 A034971
KEYWORD
nonn
STATUS
approved