A022486 Number of 3's in n-th term of A022482.
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
Extensions
More terms from Sean A. Irvine, May 16 2019