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A017150
a(n) = (8*n + 7)^2.
1
49, 225, 529, 961, 1521, 2209, 3025, 3969, 5041, 6241, 7569, 9025, 10609, 12321, 14161, 16129, 18225, 20449, 22801, 25281, 27889, 30625, 33489, 36481, 39601, 42849, 46225, 49729, 53361, 57121
OFFSET
0,1
FORMULA
G.f.: ( -49 - 78*x - x^2 ) / ( (x-1)^3 ). - R. J. Mathar, Aug 26 2015
PROG
(Magma) [(8*n+7)^2: n in [0..35]]; // Vincenzo Librandi, Jul 22 2011
(PARI) a(n)=(8*n+7)^2 \\ Charles R Greathouse IV, Jun 17 2017
CROSSREFS
Sequence in context: A204709 A192359 A100453 * A137880 A264538 A266799
KEYWORD
nonn,easy
STATUS
approved