A297192 Left-hand half of triangle A297191.

1, 1, 3, 1, 7, 13, 1, 11, 41, 63, 1, 15, 85, 231, 321, 1, 19, 145, 575, 1289, 1683, 1, 23, 221, 1159, 3649, 7183, 8989, 1, 27, 313, 2047, 8361, 22363, 40081, 48639, 1, 31, 421, 3303, 16641, 56695, 134245, 224143, 265729, 1, 35, 545, 4991, 29961, 124515, 369305

Offset: 0

Author

N. J. A. Sloane, Jan 10 2018

Keywords

• nonn
• tabl
• easy

Links

• Rémy Sigrist, Rows n = 0..100 of triangle, flattened
• Rémy Sigrist, PARI program for A297192

Crossrefs

Cf. A008288, A297191.

Programs

PARI

See Links section.

Extensions

More terms from Rémy Sigrist, Jan 19 2018