A027244 a(n) = Sum_{k=0..n} (k+1) * A026769(n, n-k).
1, 3, 8, 23, 59, 158, 395, 1023, 2522, 6414, 15694, 39486, 96226, 240470, 584762, 1454777, 3533743, 8763720, 21276031, 52642872, 127770797, 315574532, 765852193, 1888788990, 4583560631, 11290381790, 27397549743, 67414670138
Offset: 0