A323264 The sequence denoted by j_n used in the calculation of A323260.

0, 0, 0, 1, 3, 13, 54, 216, 884, 3575, 14527, 58925, 239168, 970540, 3938720, 15984049, 64866679, 263242213, 1068291334, 4335346204, 17593728716, 71398977047, 289751765259, 1175872383597, 4771932491856, 19365485592728, 78589131949936, 318930895432049, 1294287308406283

Offset

1,5

Links

Table of n, a(n) for n=1..29.

K. A. Van'kov, V. M. Zhuravlyov, Regular tilings and generating functions, Mat. Pros. Ser. 3, issue 22, 2018 (127-157) [in Russian]. See Table 1.

Index entries for linear recurrences with constant coefficients, signature (3,6,-6,-6,8,5,-1).

Formula

Van'kov and Zhuravlyov give recurrences.

G.f.: x^4*(1-2*x^2+3*x^3)/(x^5-7*x^4+5*x^3+3*x^2-5*x+1)/(1+x)^2 . - R. J. Mathar, Jan 11 2019

Crossrefs

Cf. A323260-A323269.

Sequence in context: A180933 A048514 A037779 * A362495 A305655 A354505

Adjacent sequences: A323261 A323262 A323263 * A323265 A323266 A323267

Keyword

nonn,easy

Author

N. J. A. Sloane, Jan 09 2019

Status

approved