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URL: https://oeis.org/history?seq=A117668

⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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Showing entries 1-10 | older changes
a(n) is the n-th prime number if n is prime; a(n) is the n-th nonprime number otherwise.
#11 by Harvey P. Dale at Fri Oct 01 17:13:28 EDT 2021
STATUS
#10 by Harvey P. Dale at Fri Oct 01 17:13:20 EDT 2021
DATA
MATHEMATICA
EXTENSIONS
STATUS
#9 by Alois P. Heinz at Sat Jul 10 15:40:09 EDT 2021
STATUS
#8 by Alois P. Heinz at Sat Jul 10 15:39:36 EDT 2021
NAME
CROSSREFS
STATUS
Discussion
Sat Jul 10
15:40
Alois P. Heinz: yes ... and short ... which is good
#7 by Jon E. Schoenfield at Sat Jul 10 15:26:48 EDT 2021
STATUS
#6 by Jon E. Schoenfield at Sat Jul 10 15:26:43 EDT 2021
NAME
STATUS
Discussion
Sat Jul 10
15:26
Jon E. Schoenfield: Simplification okay?
#5 by Joerg Arndt at Sat Jun 01 09:57:44 EDT 2013
STATUS
#4 by Michel Marcus at Sat Jun 01 02:57:59 EDT 2013
STATUS
#3 by Michel Marcus at Sat Jun 01 02:57:56 EDT 2013
EXAMPLE
#2 by Michel Marcus at Sat Jun 01 02:54:13 EDT 2013
NAME
OFFSET
EXTENSIONS
STATUS
Discussion
Sat Jun 01
02:55
Michel Marcus: With n-th composite, we get: 4, 3, 5, 9, 11, 12, ...