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!)
 A292130 Triangle read by rows: T(n,k) = (-3) * T(n-k,k-1) + T(n-k,k) with T(0,0) = 1 for 0 <= k <= A003056(n). 2
 1, 0, -3, 0, -3, 0, -3, 9, 0, -3, 9, 0, -3, 18, 0, -3, 18, -27, 0, -3, 27, -27, 0, -3, 27, -54, 0, -3, 36, -81, 0, -3, 36, -108, 81, 0, -3, 45, -135, 81, 0, -3, 45, -189, 162, 0, -3, 54, -216, 243, 0, -3, 54, -270, 405, 0, -3, 63, -324, 486, -243, 0, -3, 63, -378 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Seiichi Manyama, Rows n = 0..481, flattened EXAMPLE First few rows are:   1;   0, -3;   0, -3;   0, -3,  9;   0, -3,  9;   0, -3, 18;   0, -3, 18,  -27;   0, -3, 27,  -27;   0, -3, 27,  -54;   0, -3, 36,  -81;   0, -3, 36, -108, 81. CROSSREFS Row sums give A292128. Columns 0-1 give A000007, (-1)*A010701. Cf. A291971. Sequence in context: A194084 A262281 A297871 * A291971 A240923 A272727 Adjacent sequences:  A292127 A292128 A292129 * A292131 A292132 A292133 KEYWORD sign,tabf AUTHOR Seiichi Manyama, Sep 09 2017 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 May 16 21:28 EDT 2021. Contains 343951 sequences. (Running on oeis4.)