A026408 a(n) = s(k), where, at the end of stage n when forming A026409, k is the greatest integer such that s(j) > 0 for all j < k.
1, 2, 2, 3, 5, 4, 5, 6, 7, 8, 6, 8, 11, 14, 13, 11, 13, 11, 17, 13, 18, 20, 23, 17, 20, 26, 24, 25, 27, 28, 25, 21, 28, 27, 35, 30, 37, 24, 26, 37, 34, 39, 41, 39, 36, 22, 26, 48, 46, 47, 48, 33, 34, 52, 46, 31, 32, 38, 59, 50, 36, 31, 33, 55, 64, 66, 67, 68, 65, 58, 59, 72, 65
Offset: 1
Keywords
Extensions
More terms from Sean A. Irvine, Sep 26 2019