A024728 - OEIS

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A024728

a(n) = A024727(n+3)/4.

1, 1, 1, 5, 9, 13, 33, 73, 145, 313, 657, 1549, 3353, 7221, 16129, 36785, 81921, 180529, 403809, 939573, 2125193, 4756893, 10800801, 25195577, 57552721, 130500393, 298271153, 700076797, 1610366937, 3680601093, 8482477313, 19929303521

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

Table of n, a(n) for n=1..32.

CROSSREFS

Cf. A024727.

Sequence in context: A257171 A233973 A089977 * A024950 A180514 A118837

Adjacent sequences: A024725 A024726 A024727 * A024729 A024730 A024731

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved