login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A059408 a(n+1) = a(n)-th composite and a(1) = 13. 0
13, 22, 34, 50, 70, 95, 126, 165, 213, 272, 341, 424, 524, 640, 778, 938, 1127, 1345, 1596, 1886, 2217, 2596, 3031, 3523, 4086, 4724, 5445, 6259, 7176, 8205, 9364, 10666, 12118, 13744, 15560, 17583, 19827, 22328, 25099, 28171, 31569, 35334 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

g[ n_Integer ] := (k = n + PrimePi[ n ] + 1; While[ k - PrimePi[ k ] - 1, k++ ]; k); NestList[ g, 13, 45 ]

CROSSREFS

Cf. A006508.

Sequence in context: A158998 A122559 A132131 * A164455 A164504 A164413

Adjacent sequences:  A059405 A059406 A059407 * A059409 A059410 A059411

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Jan 29 2001

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 15 15:20 EST 2012. Contains 205823 sequences.