A026116 T(2n,n+1), where T is the array defined in A026105.
1, 7, 44, 259, 1509, 8767, 50973, 296907, 1733150, 10138970, 59435705, 349085651, 2053897585, 12103791975, 71432963850, 422138418075, 2497699796394, 14794839261958, 87725376843892, 520654743222562, 3092804089136541, 18386738886807495, 109390940367285906, 651267699186002859
Offset: 1
Keywords
Crossrefs
Cf. A026105.
Extensions
More terms from Sean A. Irvine, Sep 16 2019