|
%I #21 Jun 22 2022 20:27:03
%S 1,7,10,81,101,121,141,161,1126,1251,1376,1501,1626,1751,1876,2001,
%T 2126,2251,2376,2501,2626,17117,17895,18673,19451,20229,21007,21785,
%U 22563,23341,24119,24897,25675,26453,27231,28009,28787,29565,30343,31121,31899,32677,33455
%N a(n) is the row of the Trithoff (tribonacci) array that contains the tails of the sequence which is n times the tribonacci numbers.
%C This sequence is increasing.
%C The first term of the row a(n) in the Trithoff array is sequence A351689.
%e Consider twice the Tribonacci numbers: 0, 0, 2, 2, 4, 8, 14, 26, 48, and so on. The first few terms can be found in the first row of the Trithoff array A136175. The tail starting with 14, 26, and 48 is the seventh row of the Trithoff array. Thus, a(2) = 7.
%Y Cf. A000073, A136175, A351689.
%Y .
%K nonn
%O 1,2
%A _Tanya Khovanova_ and PRIMES STEP Senior group, May 08 2022
|
