%I #10 Jul 20 2022 08:52:42
%S 0,7,13,20,24,31,37,44,51,57,64,68,75,81,88,94,101,105,112,118,125,
%T 132,138,145,149,156,162,169,173,180,186,193,200,206,213,217,224,230,
%U 237,243,250,254,261,267,274,281,287,294,298,305,311,318,325,331,338,342,349,355,362,368,375,379,386
%N The tribonacci representation of a(n) is obtained by appending 0,0,0 to the tribonacci representation of n (cf. A278038).
%Y Cf. A278038, A278039, A278040, A278041, A308199.
%Y Essentially partial sums of A276792.
%K nonn,base
%O 0,2
%A _N. J. A. Sloane_, Jun 23 2019