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!)
 A144334 Triangle read by rows, A144328^2 1
 1, 2, 1, 4, 3, 4, 7, 6, 10, 9, 11, 10, 18, 21, 16, 16, 15, 28, 36, 36, 25, 22, 21, 40, 54, 60, 55, 36, 29, 28, 54, 75, 88, 90, 78, 49, 37, 36, 70, 99, 120, 130, 126, 105, 64, 46, 45, 88, 126, 156, 175, 180, 168, 136, 81, 56, 55, 108, 156, 196, 225, 240, 238, 216, 171, 100 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Row sums = A144335: (1, 3, 11, 32, 76, 156, 288,...). Left border = A000124. LINKS EXAMPLE First few rows of the triangle = 1; 2, 1 4, 3, 4; 7, 6, 10, 9; 11, 10, 18, 21, 16; 16, 15, 28, 36, 36, 25; 22, 21, 40, 54, 60, 55, 36; 29, 28, 54, 75, 88, 90, 78, 49; ... CROSSREFS A144328, Cf. A144335 Sequence in context: A316433 A071046 A324757 * A141210 A244373 A107640 Adjacent sequences:  A144331 A144332 A144333 * A144335 A144336 A144337 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Sep 18 2008 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 February 26 11:49 EST 2020. Contains 332279 sequences. (Running on oeis4.)