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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A024783 Every suffix prime and no 0 digits in base 8 (written in base 8). 3
2, 3, 5, 7, 13, 15, 23, 27, 35, 37, 45, 53, 57, 65, 73, 75, 123, 145, 153, 213, 227, 235, 265, 323, 337, 345, 357, 373, 415, 445, 475, 513, 535, 557, 565, 573, 615, 645, 657, 673, 715, 723, 737, 753, 775, 1145, 1153, 1357, 1475, 1737, 1775, 2213, 2235, 2535, 3123, 3145 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The final term of the sequence is a(446) = 313636165537775.

LINKS

Nathaniel Johnston, Table of n, a(n) for n = 1..446 (full sequence)

MAPLE

a:=[[2], [3], [5], [7]]: l1:=1: l2:=4: do for k from 1 to 7 do for j from l1 to l2 do d:=[op(a[j]), k]: if(isprime(op(convert(d, base, 8, 8^nops(d)))))then a:=[op(a), d]: fi: od: od: l1:=l2+1: l2:=nops(a): if(l1>l2)then break: fi: od: seq(op(convert(a[j], base, 10, 10^nops(a[j]))), j=1..nops(a)); # Nathaniel Johnston, Jun 21 2011

CROSSREFS

Sequence in context: A031344 A004682 A173105 * A092855 A100111 A092878

Adjacent sequences:  A024780 A024781 A024782 * A024784 A024785 A024786

KEYWORD

nonn,base,easy,fini,full

AUTHOR

David W. Wilson

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 20 14:27 EDT 2019. Contains 322310 sequences. (Running on oeis4.)