A249308 Central terms of triangle A249307.

1, 2, 8, 16, 96, 192, 1280, 2560, 17920, 35840, 258048, 516096, 3784704, 7569408, 56229888, 112459776, 843448320, 1686896640, 12745441280, 25490882560, 193730707456, 387461414912, 2958796259328, 5917592518656, 45368209309696, 90736418619392, 697972450918400

Offset

0,2

Comments

a(n) = A128014(n) * 2^n = A249307(n,n);

A098430(n) = a(2*n).

Links

Reinhard Zumkeller, Table of n, a(n) for n = 0..1000

Prog

(Haskell)
a249308 n = a249307 n n

Crossrefs

Cf. A249307, A128014, A098430.

Sequence in context: A195798 A100736 A099888 * A353820 A199043 A046161

Adjacent sequences: A249305 A249306 A249307 * A249309 A249310 A249311

Keyword

nonn

Author

Reinhard Zumkeller, Nov 14 2014

Status

approved