|
Search: id:A043699
|
|
| |
|
| 0, 2, 24, 350, 4896, 68962, 970200, 13652158, 192099456, 2703046850, 38034749784, 535189557278, 7530688519200, 105964828904482, 1491038292992664, 20980500931258750, 295218051329511936, 4154033219547089282, 58451683124982331800, 822477596969315258078
(list; graph; listen)
|
|
|
OFFSET
|
0,2
|
|
|
FORMULA
|
a(n) is asymptotic to (1/8)*(7+2*sqrt(5))^n; a(n)=2*A052208(n)
|
|
PROGRAM
|
(PARI) a(n)=if(n<0, 0, contfracpnqn(vector(n, i, 1+(i>1)))[2, 1]*contfracpnqn(vector (2*n, i, 1+(i>1)))[2, 1])
|
|
CROSSREFS
|
Cf. A000129.
Sequence in context: A099045 A013523 A081065 this_sequence A134805 A119702 A126804
Adjacent sequences: A043696 A043697 A043698 this_sequence A043700 A043701 A043702
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Gary W. Adamson, Feb 01 2000
|
|
|
Search completed in 0.004 seconds
|
