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A199638
Last number in row n of triangle A199636.
1
5, 3, 21, 13, 85, 53, 341, 227, 1365, 909, 5461, 3637, 21845, 14563, 87381, 58253, 349525, 233013, 1398101, 932067, 5592405, 3728269, 22369621, 14913077, 89478485, 59652323, 357913941, 238609293, 1431655765, 954437173, 5726623061, 3817748707, 22906492245
OFFSET
4,1
COMMENTS
This sequence appears to satisfy a(n) = 4*a(n-2) + a(n-6) - 4*a(n-8). It also appears that a(2n) = A002450(n).
CROSSREFS
Sequence in context: A199636 A324038 A221473 * A296356 A091593 A154825
KEYWORD
nonn
AUTHOR
T. D. Noe, Nov 14 2011
STATUS
approved