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A025710
Index of 5^n within sequence of numbers of form 5^i*9^j.
0
1, 2, 4, 7, 10, 14, 19, 25, 31, 38, 46, 55, 64, 74, 85, 96, 108, 121, 135, 149, 164, 180, 197, 214, 232, 251, 271, 291, 312, 334, 356, 379, 403, 428, 453, 479, 506, 534, 562, 591, 621, 652, 683, 715, 748, 781, 815, 850, 886, 922, 959, 997, 1036, 1075, 1115, 1156, 1198
OFFSET
1,2
CROSSREFS
Sequence in context: A117634 A022776 A025704 * A023536 A196126 A024536
KEYWORD
nonn
STATUS
approved