OFFSET
1,5
COMMENTS
Row sums are A022493.
Second column are powers of 2.
EXAMPLE
Triangle starts:
[ 1] 1,
[ 2] 1, 1,
[ 3] 1, 2, 2,
[ 4] 1, 4, 5, 5,
[ 5] 1, 8, 13, 15, 16,
[ 6] 1, 16, 35, 47, 56, 62,
[ 7] 1, 32, 97, 153, 204, 248, 279,
[ 8] 1, 64, 275, 515, 770, 1030, 1257, 1423,
[ 9] 1, 128, 793, 1785, 3000, 4424, 5869, 7140, 8100,
[10] 1, 256, 2315, 6347, 12026, 19582, 28293, 37058, 44843, 50887,
...
CROSSREFS
Cf. A022493 (number of ascent sequences).
Cf. A218579 (ascent sequences with last zero at position k-1), A218581 (ascent sequences with last occurrence of the maximal value at position k-1).
KEYWORD
nonn,tabl
AUTHOR
Joerg Arndt, Nov 03 2012
STATUS
approved