The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A092477 Triangle read by rows: T(n,k) = (2^k - 1)^n, 1<=k<=n. 4
 1, 1, 9, 1, 27, 343, 1, 81, 2401, 50625, 1, 243, 16807, 759375, 28629151, 1, 729, 117649, 11390625, 887503681, 62523502209, 1, 2187, 823543, 170859375, 27512614111, 3938980639167, 532875860165503, 1, 6561, 5764801, 2562890625 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS T(n,1)=1; T(n,2)=A000244(n); T(n,n-1)=A086206(n); T(n,n)=A055601(n). T(n,k) is the number of n X k binary matrices with no 0 rows. The triangular array becomes a rectangular array by lifting the restriction on k. [From Geoffrey Critzer, Dec 03 2009] LINKS EXAMPLE Triangle begins 1 1,9 1,27,343 1,81,2401,50625 1,243,16807,759375, 28629151 [From Geoffrey Critzer, Dec 03 2009] MATHEMATICA Table[Table[(2^k - 1)^n, {k, 1, n}], {n, 1, 6}] // Grid [From Geoffrey Critzer, Dec 03 2009] CROSSREFS Sequence in context: A181318 A202006 A195278 * A019433 A276634 A050312 Adjacent sequences:  A092474 A092475 A092476 * A092478 A092479 A092480 KEYWORD nonn,tabl AUTHOR Reinhard Zumkeller, Mar 26 2004 STATUS approved

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

Last modified August 18 07:06 EDT 2022. Contains 356204 sequences. (Running on oeis4.)