This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A152038 Convolution of A039599 with itself . 0
 1, 2, 3, 6, 11, 12, 22, 42, 51, 56, 107, 170, 201, 272, 385, 476, 653, 1042, 1433, 1590, 1602, 2386, 4280, 5644, 5508, 6110, 9217, 13324, 17315, 19512, 19690, 25990, 43918, 59982, 61931, 57374 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS PROG (PARI) lista(nn) = {v = vector((nn+1)*(nn+2)/2); iv = 0; for (n=0, nn, for (k=0, n, v[iv++] = (2*k+1)*binomial(2*n, n-k)/(n+k+1); ); ); n = #v; for (i=1, n, print1(sum(k=1, i, v[k]*v[i-k+1]), ", "); ); } \\ Michel Marcus, Jun 02 2013 CROSSREFS Cf. A039599 Sequence in context: A247953 A284091 A004038 * A105614 A116441 A116051 Adjacent sequences:  A152035 A152036 A152037 * A152039 A152040 A152041 KEYWORD nonn AUTHOR Philippe Deléham, Nov 20 2008 EXTENSIONS More terms from Michel Marcus, Jun 02 2013 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 July 21 02:02 EDT 2019. Contains 325189 sequences. (Running on oeis4.)