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!)
 A300583 Expansion of Product_{k>=1} 1 / (1 - 2*3^k*x^k)). 1
 1, 6, 54, 378, 2754, 17982, 121014, 765450, 4894506, 30429918, 189311094, 1160312850, 7113869226, 43228473822, 262556300286, 1587419581410, 9590551158474, 57795130268694, 348125978482686, 2093918636332530, 12590534397102930, 75647788993941174 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS FORMULA a(n) ~ c * 6^n, where c = A065446 = 1/QPochhammer(1/2) = 3.46274661945506361153... MATHEMATICA nmax = 25; CoefficientList[Series[Product[1/(1-2*3^k*x^k), {k, 1, nmax}], {x, 0, nmax}], x] CROSSREFS Cf. A242587, A300582. Sequence in context: A334881 A116138 A227268 * A060774 A043026 A125837 Adjacent sequences:  A300580 A300581 A300582 * A300584 A300585 A300586 KEYWORD nonn AUTHOR Vaclav Kotesovec, Mar 09 2018 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 June 18 18:14 EDT 2021. Contains 345120 sequences. (Running on oeis4.)