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!)
 A134839 Triangle, n-th row = first n terms in n-th row of an array formed by A051731 * A126988(transform). 1
 1, 1, 3, 1, 2, 4, 1, 3, 3, 7, 1, 2, 3, 4, 6, 1, 3, 4, 6, 5, 12, 1, 2, 3, 4, 5, 6, 8, 1, 3, 3, 7, 5, 9, 7, 15, 1, 2, 4, 4, 5, 8, 7, 8, 13, 1, 3, 3, 6, 6, 9, 7, 12, 9, 18 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Right border = sigma(n), A000203: (1, 3, 4, 7, 6, 12, ...). Row sums = A007437: (1, 4, 7, 14, 16, 31, 29, 50, ...). LINKS Table of n, a(n) for n=1..55. FORMULA Given the array formed by A051731 * A126988(transform), the triangle by rows = first n terms of n-th row of the array. EXAMPLE First few rows of the array: 1, 2, 3, 4, 5, 6, 7, ... 1, 3, 3, 6, 5, 9, 7, ... 1, 2, 4, 4, 5, 8, 7, ... 1, 3, 3, 7, 5, 9, 7, ... 1, 2, 3, 4, 6, 6, 7, ... 1, 3, 4, 6, 5, 12, 7, ... ... First few rows of the triangle: 1; 1, 3; 1, 2, 4; 1, 3, 3, 7; 1, 2, 3, 4, 6; 1, 3, 4, 6, 5, 12; 1, 2, 3, 4, 5, 6, 8; ... CROSSREFS Cf. A126988, A051731, A000203, A007437. Sequence in context: A080890 A251621 A016468 * A077581 A130419 A083110 Adjacent sequences: A134836 A134837 A134838 * A134840 A134841 A134842 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Nov 12 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified May 28 01:34 EDT 2024. Contains 372900 sequences. (Running on oeis4.)