OFFSET
0,2
LINKS
Anthony Zaleski, Doron Zeilberger, On the Intriguing Problem of Counting (n+1,n+2)-Core Partitions into Odd Parts, arXiv:1712.10072 [math.CO], 2017.
Index entries for linear recurrences with constant coefficients, signature (1, 3, -2, -1, 1).
FORMULA
G.f.: -(x^4-x^3-x^2+x+1)/(x^5-x^4-2*x^3+3*x^2+x-1).
MATHEMATICA
LinearRecurrence[{1, 3, -2, -1, 1}, {1, 2, 4, 7, 15}, 40] (* Jean-François Alcover, Feb 20 2018 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Anthony Zaleski, Feb 15 2018
STATUS
approved