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Left-hand half of triangle A297191.
2

%I #6 Jan 19 2018 01:41:21

%S 1,1,3,1,7,13,1,11,41,63,1,15,85,231,321,1,19,145,575,1289,1683,1,23,

%T 221,1159,3649,7183,8989,1,27,313,2047,8361,22363,40081,48639,1,31,

%U 421,3303,16641,56695,134245,224143,265729,1,35,545,4991,29961,124515,369305

%N Left-hand half of triangle A297191.

%H Rémy Sigrist, <a href="/A297192/b297192.txt">Rows n = 0..100 of triangle, flattened</a>

%H Rémy Sigrist, <a href="/A297192/a297192.gp.txt">PARI program for A297192</a>

%o (PARI) See Links section.

%Y Cf. A008288, A297191.

%K nonn,tabl,easy

%O 0,3

%A _N. J. A. Sloane_, Jan 10 2018

%E More terms from _Rémy Sigrist_, Jan 19 2018