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A055875 a(0)=1, a(n) = prime(n^3). 15
1, 2, 19, 103, 311, 691, 1321, 2309, 3671, 5519, 7919, 10957, 14753, 19403, 24809, 31319, 38873, 47657, 57559, 69031, 81799, 96137, 112291, 130073, 149717, 171529, 195043, 220861, 248851, 279431, 312583, 347707, 386093, 427169, 470933, 517553 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

A sequence of increments for Shell sort that produces good results. A bit better than Sedgewick's A036562 and A003462.

LINKS

Ivan Panchenko, Table of n, a(n) for n = 0..1000

Index entries for sequences related to sorting

FORMULA

a(n) = A000040(A000578(n)), n>0.

PROG

(MAGMA) [NthPrime(n^3): n in [0..50] ]; // Vincenzo Librandi, Apr 22 2011

CROSSREFS

Cf. A036562, A003462, A036567, A036569, A055876.

Sequences used for Shell sort: A003462, A033622, A036562, A036564, A036569, A055875.

Cf. A011757, A109724.

Sequence in context: A041393 A107123 A193047 * A089659 A240124 A278405

Adjacent sequences:  A055872 A055873 A055874 * A055876 A055877 A055878

KEYWORD

easy,nonn

AUTHOR

Steven Pigeon (pigeon(AT)iro.umontreal.ca), Jul 14 2000

EXTENSIONS

More terms from Jonathan Vos Post, Aug 13 2005

STATUS

approved

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Last modified June 26 23:21 EDT 2017. Contains 288777 sequences.