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A185549 a(n) = ceiling(n^(3/2)); complement of A185550. 4
0, 1, 3, 6, 8, 12, 15, 19, 23, 27, 32, 37, 42, 47, 53, 59, 64, 71, 77, 83, 90, 97, 104, 111, 118, 125, 133, 141, 149, 157, 165, 173, 182, 190, 199, 208, 216, 226, 235, 244, 253, 263, 273, 282, 292, 302, 312, 323, 333, 343, 354, 365, 375, 386, 397, 408, 420, 431, 442, 454, 465, 477, 489 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

FORMULA

a(n) = ceiling(n^(3/2)).

MATHEMATICA

f[n_]=Ceiling[n^(3/2)];

t1=Table[f[n], {n, 1, 90}]; t1  (* A185549 *)

t2=Complement[Range[150], Table[f[n], {n, 1, 80}]]; t2  (* A185550 *)

PROG

(Haskell)

a185549 = ceiling . (** (3 / 2)) . fromIntegral

-- Reinhard Zumkeller, Jul 24 2015

(PARI) for(n=0, 50, print1(ceil(n^(3/2)), ", ")) \\ G. C. Greubel, Jul 08 2017

CROSSREFS

Cf. A000093, A185550.

Cf. A144968 (first differences).

Sequence in context: A298793 A077024 A338722 * A185597 A082873 A182727

Adjacent sequences:  A185546 A185547 A185548 * A185550 A185551 A185552

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jan 30 2011

EXTENSIONS

Initial a(0)=0 prepended and offset adjusted by Reinhard Zumkeller, Jul 24 2015

STATUS

approved

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Last modified November 30 17:12 EST 2021. Contains 349424 sequences. (Running on oeis4.)