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A022486
Number of 3's in n-th term of A022482.
0
0, 0, 0, 0, 0, 0, 1, 1, 2, 5, 6, 9, 12, 16, 22, 27, 37, 47, 60, 81, 108, 143, 190, 266, 352, 463, 613, 812, 1086, 1419, 1873, 2509, 3328, 4399, 5836, 7780, 10328, 13672, 18148, 24110, 32066, 42426, 56269, 74791, 99188, 131518, 174439, 231657
OFFSET
1,9
CROSSREFS
Sequence in context: A090500 A050487 A046962 * A349895 A267700 A161910
KEYWORD
nonn,base
EXTENSIONS
More terms from Sean A. Irvine, May 16 2019
STATUS
approved