A137935 a(n) = 5n + 26*floor(n/5).

0, 5, 10, 15, 20, 51, 56, 61, 66, 71, 102, 107, 112, 117, 122, 153, 158, 163, 168, 173, 204, 209, 214, 219, 224, 255, 260, 265, 270, 275, 306, 311, 316, 321, 326, 357, 362, 367, 372, 377, 408, 413, 418, 423, 428, 459, 464, 469, 474, 479, 510, 515, 520, 525, 530, 561, 566

Offset

0,2

Links

Robert Israel, Table of n, a(n) for n = 0..10000

Index entries for linear recurrences with constant coefficients, signature (1,0,0,0,1,-1).

Formula

a(n) = 5n + 26*floor(n/5) = 5n + 26*A002266(n)

G.f.: (5*x+5*x^2+5*x^3+5*x^4+31*x^5)/(1-x-x^5+x^6). - Robert Israel, Apr 02 2017

Example

a(0) = 5(0) + 26*floor(0/5) = 0
a(3) = 5(3) + 26*floor(3/5) = 15

Maple

seq(5*n + 26*floor(n/5), n=0..200); # Robert Israel, Apr 02 2017

Prog

(Python) a = lambda n: 5*n + 26*floor(n/5)

Crossrefs

Cf. A002266.

Sequence in context: A115817 A070004 A104356 * A255400 A115182 A313762

Adjacent sequences: A137932 A137933 A137934 * A137936 A137937 A137938

Keyword

nonn,easy

Author

William A. Tedeschi, Mar 06 2008

Status

approved