This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A069356 Primes of the form 2^i*3^j - (i+j) with i, j >= 0. 5
 2, 5, 7, 43, 67, 103, 157, 281, 503, 641, 1451, 3061, 4597, 6553, 8179, 10357, 15541, 34981, 78721, 209939, 524269, 1062869, 2097131, 13436909, 25509151, 28311529, 63700969, 113246183, 153054989, 516560633, 573308903, 774840959, 805306339 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Vincenzo Librandi, Table of n, a(n) for n = 1..300 MATHEMATICA Take[ Select[ Union[ Flatten[ Table[2^i*3^j - (i + j), {i, 0, 28}, {j, 0, 18}]]], PrimeQ[ # ] &], 33] CROSSREFS Cf. A069355, A005105, A069358, A069346. Sequence in context: A062645 A174259 A215213 * A041653 A182785 A041125 Adjacent sequences:  A069353 A069354 A069355 * A069357 A069358 A069359 KEYWORD nonn AUTHOR Reinhard Zumkeller, Mar 18 2002 EXTENSIONS Edited and extended by Robert G. Wilson v, May 09 2003 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.

Last modified July 23 15:58 EDT 2019. Contains 325258 sequences. (Running on oeis4.)