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A022339 Index of 3^n within sequence of numbers of form 3^i*5^j. 0
1, 2, 4, 7, 10, 14, 19, 24, 30, 37, 44, 52, 61, 70, 80, 91, 102, 114, 127, 140, 154, 169, 185, 201, 218, 236, 254, 273, 293, 313, 334, 356, 378, 401, 425, 449, 474, 500, 526, 553, 581, 609, 638, 668, 699, 730, 762, 795, 828, 862, 897, 932, 968, 1005, 1042, 1080, 1119 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..57.

CROSSREFS

Sequence in context: A024512 A047808 A007980 * A025711 A117634 A022776

Adjacent sequences:  A022336 A022337 A022338 * A022340 A022341 A022342

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified February 17 23:47 EST 2018. Contains 299297 sequences. (Running on oeis4.)