[Retracted] Computing the Energy and Estrada Index of Different Molecular Structures

Table 6

The polynomial of order 2 for the and of naphthalene.

	Energy (E(N))	Estrada index (EE(N))
	0.0019n^2 + 14.5781n − 0.9285	−0.0117n^2 + 28.7981n − 3.5494
	0.0023n^2 + 29.7505n − 1.8301	−0.0413n^2 + 62.09n − 2.8202
	0.0031n^2 + 44.9205n − 2.7308	0.085n^2 + 94.4701n − 10.3612
	0.0043n^2 + 60.0881n − 3.6279	0.03015n^2 + 127.04n − 15.7054
	0.0059n^2 + 75.2533n − 4.5214	0.06667n^2 + 160.8653n − 19.433
	0.0079n^2 + 90.4161n − 5.4113	1.6043nn^2 + 196.5316n − 24.9634
	0.0103n^2 + 105.5765n − 6.2976	4.0707n^2 + 234.1325n − 34.0192
	0.0131n^2 + 120.7345n − 7.1803	9.6511n^2 + 273.6896n − 45.7622
	0.0163n^2 + 135.8901n − 8.0594	20.5835n^2 + 316.0045n − 59.6014
	0.0199n^2 + 151.0433n − 8.9349	39.7109n^2 + 363.9428n − 81.673