A078277 - OEIS

%I #13 May 17 2020 02:38:45

%S 1,121,13941,1577761,176141581,1028725268301,12104701810650121,

%T 139230653737447031941,1574142902828283083413761,

%U 17559792682830102828719795581,102963381555591939195556174359301,1211379362828828501048288283629741121

%N a(n) = A078274(n)/11.

%o (PARI) a(n) = {my(d, v=[1]); for(i=2, n, v=concat(v, d=digits(2*i-1))); w=Vecrev(v); fromdigits(vector(2*#v, i, if(i%2, v[1+i\2], w[i/2])))/11; } \\ _Jinyuan Wang_, May 17 2020

%Y Cf. A078274, A078275, A078276.

%K nonn,base

%O 1,2

%A _Amarnath Murthy_, Nov 25 2002

%E More terms from _Sean A. Irvine_, Aug 15 2011

%E Corrected by _Sean A. Irvine_, May 30 2013