A244476 6th-largest term in n-th row of Stern's diatomic triangle A002487.

2, 8, 15, 26, 45, 75, 121, 199, 322, 542, 877, 1427, 2309, 3739, 6050, 9790, 15841, 25632, 41473, 67105, 108578, 175683, 284261, 459944, 744205, 1204149, 1948354, 3152503, 5100857, 8253360

Offset: 4

Author

N. J. A. Sloane, Jul 01 2014

Keywords

• nonn
• more

Links

• Jennifer Lansing, Largest Values for the Stern Sequence, Journal of Integer Sequences, Vol. 17 (2014), Article 14.7.5.

Crossrefs

Cf. A002487, A244472, A244473, A244474, A244475.

Programs

Python

from functools import reduce
from itertools import product
def A244476(n): return sorted(set(sum(reduce(lambda x,y:(x[0],x[0]+x[1]) if y else (x[0]+x[1],x[1]),k,(1,0))) for k in product((False,True),repeat=n)),reverse=True)[5] # Chai Wah Wu, Jun 19 2022

Extensions

a(24)-a(33) from Chai Wah Wu, Jun 19 2022