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!)
 A232977 G.f.: Product_{k>=1} 1/(1-(4*x)^k)^(k/2). 1
 1, 2, 22, 148, 1126, 6780, 49020, 290664, 1945734, 11786988, 74564884, 445398168, 2767974620, 16299877464, 98372647992, 577710929872, 3417417696966, 19822614160204, 115774907274660, 664999142005688, 3833211645341172, 21844173121980168, 124494179613063496, 703535711892561840, 3974352552423163548 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Substitute 4x for x in g.f. mentioned in A232976. LINKS Alois P. Heinz, Table of n, a(n) for n = 0..500 CROSSREFS Cf. A232976/A046161, A000219. Sequence in context: A202738 A082940 A286778 * A282819 A123960 A265864 Adjacent sequences: A232974 A232975 A232976 * A232978 A232979 A232980 KEYWORD nonn AUTHOR N. J. A. Sloane, Dec 07 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified June 16 19:52 EDT 2024. Contains 373432 sequences. (Running on oeis4.)