The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A025815 Expansion of 1/((1-x^2)(1-x^6)(1-x^11)). 1
 1, 0, 1, 0, 1, 0, 2, 0, 2, 0, 2, 1, 3, 1, 3, 1, 3, 2, 4, 2, 4, 2, 5, 3, 6, 3, 6, 3, 7, 4, 8, 4, 8, 5, 9, 6, 10, 6, 10, 7, 11, 8, 12, 8, 13, 9, 14, 10, 15, 10, 16, 11, 17, 12, 18, 13, 19, 14, 20, 15, 21, 16, 22, 17, 23, 18, 25, 19 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,7 LINKS Harvey P. Dale, Table of n, a(n) for n = 0..1000 Index entries for linear recurrences with constant coefficients, signature (0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 1). MATHEMATICA CoefficientList[Series[1/((1-x^2)(1-x^6)(1-x^11)), {x, 0, 80}], x] (* or *) LinearRecurrence[ {0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 1}, {1, 0, 1, 0, 1, 0, 2, 0, 2, 0, 2, 1, 3, 1, 3, 1, 3, 2, 4}, 80] (* Harvey P. Dale, Jul 30 2024 *) CROSSREFS Sequence in context: A143232 A329981 A096030 * A219199 A029225 A341977 Adjacent sequences: A025812 A025813 A025814 * A025816 A025817 A025818 KEYWORD nonn AUTHOR N. J. A. Sloane. 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 August 14 23:14 EDT 2024. Contains 375171 sequences. (Running on oeis4.)