The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A128190 Inverse of A128189. 0
 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, 1, -1, 0, 1, 0, 0, 0, 0, -1, 0, 1, 0, 0, -1, 1, 0, -1, 0, 1, 0, 0, 1, 0, 0, 0, -1, 0, 1, 0, 0, 0, -1, 1, 0, 0, -1, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Row sums = 1, 2, 1, 1, 0, 1, 0, 0, 1, 0,... (the first 10 terms of A104162). LINKS FORMULA Inverse of A128189 as an infinite lower triangular matrix. EXAMPLE First few rows of the triangle are: 1; 1, 1; 0, 0, 1; 0, 0, 0, 1; 0, 0, -1, 0, 1; 0, 0, 1, -1, 0, 1; ... CROSSREFS Cf. A104162, A128189. Sequence in context: A204443 A105349 A096606 * A128189 A303340 A115512 Adjacent sequences:  A128187 A128188 A128189 * A128191 A128192 A128193 KEYWORD tabl,sign AUTHOR Gary W. Adamson, Feb 17 2007 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 June 19 15:42 EDT 2021. Contains 345142 sequences. (Running on oeis4.)