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A139616 a(n) = 120*n + 16. 3
16, 136, 256, 376, 496, 616, 736, 856, 976, 1096, 1216, 1336, 1456, 1576, 1696, 1816, 1936, 2056, 2176, 2296, 2416, 2536, 2656, 2776, 2896, 3016, 3136, 3256, 3376, 3496, 3616, 3736, 3856, 3976, 4096, 4216, 4336, 4456, 4576, 4696, 4816 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

Numbers of the 16th column of positive numbers in the square array of nonnegative and polygonal numbers A139600. Also, numbers of the 16th column in the square array A057145.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..5000

Index entries for linear recurrences with constant coefficients, signature (2,-1).

FORMULA

a(n) = 2*a(n-1)-a(n-2). - Wesley Ivan Hurt, Jun 17 2021

PROG

(MAGMA) [8*(15*n + 2): n in [0..60]]; // Vincenzo Librandi, Jul 23 2011

(PARI) a(n)=120*n+16 \\ Charles R Greathouse IV, Oct 05 2011

CROSSREFS

Cf. A057145, A139600.

Sequence in context: A067814 A219904 A253303 * A304506 A187175 A302319

Adjacent sequences:  A139613 A139614 A139615 * A139617 A139618 A139619

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol, Apr 27 2008

STATUS

approved

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Last modified January 18 15:09 EST 2022. Contains 350455 sequences. (Running on oeis4.)