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 A002101 Nearest integer to 4 * Pi * n^3 / 3. (Formerly M3653 N1486) 3
 0, 4, 34, 113, 268, 524, 905, 1437, 2145, 3054, 4189, 5575, 7238, 9203, 11494, 14137, 17157, 20580, 24429, 28731, 33510, 38792, 44602, 50965, 57906, 65450, 73622, 82448, 91952, 102160, 113097, 124788, 137258, 150533, 164636, 179594, 195432, 212175, 229847 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Volume of a sphere with radius n (rounded to the nearest integer). - Wesley Ivan Hurt, Jan 28 2014 REFERENCES H. Gupta, A Table of Values of N_3(t), Proc. National Institute of Sciences of India, 13 (1947), 35-63. N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence). N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS T. D. Noe, Table of n, a(n) for n = 0..1000 MAPLE A002101:=n->round(4 * Pi * n^3/3); seq(A002101(n), n=0..100); # Wesley Ivan Hurt, Jan 28 2014 MATHEMATICA Table[Round[4 Pi n^3/3], {n, 0, 100}] (* T. D. Noe, May 24 2013 *) PROG (PARI) A002101(n)=round(n^3*4*Pi/3)   \\ M. F. Hasler, Mar 26 2012 CROSSREFS Sequence in context: A284812 A053902 A054464 * A241231 A297715 A129557 Adjacent sequences:  A002098 A002099 A002100 * A002102 A002103 A002104 KEYWORD nonn,easy AUTHOR STATUS approved

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Last modified February 22 09:34 EST 2019. Contains 320389 sequences. (Running on oeis4.)