A263896 Central terms of triangle in A075383.

1, 6, 15, 28, 90, 66, 91, 285, 153, 190, 588, 276, 800, 972, 435, 496, 1485, 1750, 703, 2223, 861, 989, 3060, 1175, 3136, 3723, 1431, 4290, 4731, 1829, 2257, 6489, 6175, 2747, 6831, 2627, 2993, 9150, 8547, 4187, 10044, 3901, 10795, 11223, 7921, 11830, 12741

Offset

1,2

Comments

a(n) = A075383(2*n-1,n).

Links

Table of n, a(n) for n=1..47.

Prog

(Haskell)
a263896 n = a075383 (2 * n - 1) n

Crossrefs

Cf. A075383.

Sequence in context: A338024 A144519 A066995 * A295979 A338488 A365418

Adjacent sequences: A263893 A263894 A263895 * A263897 A263898 A263899

Keyword

nonn

Author

Reinhard Zumkeller, Nov 29 2015

Status

approved