A338723 Alternating row sums in triangle A338721.

1, 3, 4, 6, 6, 9, 9, 11, 13, 14, 14, 18, 18, 18, 21, 23, 23, 25, 25, 29, 30, 30, 30, 34, 36, 36, 36, 39, 39, 43, 43, 45, 45, 45, 49, 52, 52, 52, 52, 56, 56, 60, 60, 60, 63, 63, 63, 67, 69, 71, 71, 71, 71, 75, 76, 80, 80, 80, 80, 84, 84, 84, 88, 90, 90, 93, 93

Offset: 1

Author

N. J. A. Sloane, Nov 30 2020

Keywords

• nonn

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A338721, A338722.

Extensions

More terms from Alois P. Heinz, Nov 30 2020