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!)
 A133110 A007318 * A133109. 2
 1, 1, 3, 1, 6, 4, 1, 9, 12, 5, 1, 12, 24, 20, 7, 1, 15, 40, 50, 35, 8, 1, 18, 60, 100, 105, 48, 9, 1, 21, 84, 175, 245, 168, 63, 11, 1, 24, 112, 280, 490, 448, 252, 88, 12, 1, 27, 144, 420, 88, 1008, 756, 396, 108, 13 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,3 COMMENTS Row sums = A100335: (1, 4, 11, 27, 64, 149,...). LINKS FORMULA Binomial transform of A133109, as an infinite lower triangular matrix. EXAMPLE First few rows of the triangle are: 1; 1, 3; 1, 6, 4; 1, 9, 12, 5; 1, 12, 24, 20, 7; 1, 15, 40, 50, 35, 8; 1, 18, 60, 100, 105, 48, 9; ... CROSSREFS Cf. A133109, A100335. Sequence in context: A070883 A120029 A201904 * A286158 A185915 A086270 Adjacent sequences:  A133107 A133108 A133109 * A133111 A133112 A133113 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Sep 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 17 10:15 EDT 2021. Contains 347478 sequences. (Running on oeis4.)