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A305548 a(n) = 27*n. 2
0, 27, 54, 81, 108, 135, 162, 189, 216, 243, 270, 297, 324, 351, 378, 405, 432, 459, 486, 513, 540, 567, 594, 621, 648, 675, 702, 729, 756, 783, 810, 837, 864, 891, 918, 945, 972, 999, 1026, 1053, 1080, 1107, 1134, 1161, 1188, 1215, 1242, 1269, 1296, 1323, 1350, 1377, 1404, 1431, 1458, 1485, 1512 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Eric Chen, Table of n, a(n) for n = 0..1000

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

FORMULA

a(n) = 27*n.

a(n) = A008585(A008591(n)) = A008591(A008585(n)).

G.f.: 27*x/(x-1)^2.

MATHEMATICA

Range[0, 2000, 27]

PROG

(PARI) a(n)=27*n

CROSSREFS

For a(n) = k*n: A001489 (k=-1), A000004 (k=0), A001477 (k=1), A005843 (k=2), A008585 (k=3) - A008607 (k=25), A252994 (k=26), this sequence (k=27), A135628 (k=28), A195819 (k=29), A249674 (k=30), A135631 (k=31), A174312 (k=32), A044102 (k=36), A085959 (k=37), A169823 (k=60), A152691 (k=64).

Sequence in context: A082915 A183032 A040702 * A306824 A043323 A033903

Adjacent sequences:  A305545 A305546 A305547 * A305549 A305550 A305551

KEYWORD

nonn,easy

AUTHOR

Eric Chen, Jun 05 2018

STATUS

approved

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Last modified October 1 04:06 EDT 2020. Contains 337441 sequences. (Running on oeis4.)