The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A167143 Column 0 of the matrix cube of triangle A167015. 3
 1, 3, 9, 43, 312, 3121, 39616, 602135, 10547538, 207620746, 4514623895, 107150379369, 2751648614456, 75953000041971, 2241736112814551, 70446370941793711, 2348550874184397643, 82802885494751780415 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS This sequence equals the reversal of row 3 of A167015 (when infinitely extended to the left), and then shifted left 1 place. In triangle T=A167015, row n of T equals the initial n terms in column 0 of matrix power T^n, reversed and with an appended '1'. The definition of A167015 may be relaxed to allow the triangle to extend indefinitely also to the left, making each row infinite. LINKS Table of n, a(n) for n=0..17. CROSSREFS Cf. A167015, other rows: A167016, A167142, A167144, A167145. Sequence in context: A154606 A369387 A232216 * A136732 A108239 A218921 Adjacent sequences: A167140 A167141 A167142 * A167144 A167145 A167146 KEYWORD nonn AUTHOR Paul D. Hanna, Oct 28 2009 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 June 17 07:06 EDT 2024. Contains 373433 sequences. (Running on oeis4.)