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

4,1

Links

Table of n, a(n) for n=4..33.

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

Prog

(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

Crossrefs

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

Sequence in context: A133230 A318242 A318272 * A292202 A189952 A077598

Adjacent sequences: A244473 A244474 A244475 * A244477 A244478 A244479

Keyword

nonn,more

Author

N. J. A. Sloane, Jul 01 2014

Extensions

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

Status

approved