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A249308 Central terms of triangle A249307. 4
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 (list; graph; refs; listen; history; text; internal format)
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 * A199043 A046161 A092978

Adjacent sequences:  A249305 A249306 A249307 * A249309 A249310 A249311

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Nov 14 2014

STATUS

approved

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Last modified October 15 13:01 EDT 2018. Contains 316236 sequences. (Running on oeis4.)