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A184112 n+ceiling(n^2/16); complement of A184111. 1
2, 3, 4, 5, 7, 9, 11, 12, 15, 17, 19, 21, 24, 27, 30, 32, 36, 39, 42, 45, 49, 53, 57, 60, 65, 69, 73, 77, 82, 87, 92, 96, 102, 107, 112, 117, 123, 129, 135, 140, 147, 153, 159, 165, 172, 179, 186, 192, 200, 207, 214, 221, 229, 237, 245, 252, 261, 269, 277, 285, 294, 303, 312, 320, 330, 339, 348, 357, 367, 377, 387, 396, 407, 417, 427, 437, 448, 459, 470, 480, 492, 503, 514, 525, 537, 549, 561, 572, 585, 597 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..90.

Index entries for linear recurrences with constant coefficients, signature (2,-1,0,0,0,0,0,1,-2,1).

FORMULA

a(n) = +2 a(n-1) -a(n-2) +a(n-8) -2 a(n-9) +a(n-10). - R. J. Mathar, Mar 11 2012

MATHEMATICA

a=16; b=-16;

Table[n+Floor[(a*n+b)^(1/2)], {n, 100}]

Table[n-1+Ceiling[(n^2-b)/a], {n, 90}]

CROSSREFS

Cf. A184111.

Sequence in context: A230843 A188551 A045782 * A064005 A306587 A316268

Adjacent sequences:  A184109 A184110 A184111 * A184113 A184114 A184115

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Jan 09 2011

STATUS

approved

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Last modified August 18 15:59 EDT 2019. Contains 326108 sequences. (Running on oeis4.)