A065234 - cp's OEIS frontend

A065234 Fill a triangular array by rows by writing numbers 1 up to b(0), 1 up to b(1), etc., where b(n) are the decagonal numbers. The first elements of the rows form a(n).

%I A065234 #5 Nov 01 2024 15:06:26
%S A065234 1,1,3,6,10,5,11,18,26,8,18,29,41,2,16,31,47,64,82,16,36,57,79,102,
%T A065234 126,25,51,78,106,135,165,21,53,86,120,155,191,228,34,73,113,154,196,
%U A065234 239,283,31,77,124,172,221,271,322,4,57,111,166,222,279,337,396,5,66,128
%N A065234 Fill a triangular array by rows by writing numbers 1 up to b(0), 1 up to b(1), etc., where b(n) are the decagonal numbers. The first elements of the rows form a(n).
%Y A065234 Mini-index to these sequences: A064766, A064865, A064866, A065221-A655234 are all of the same type. See A064766 for a detailed explanation.
%K A065234 easy,nonn
%O A065234 0,3
%A A065234 _Floor van Lamoen_, Oct 22 2001

cp's OEIS Frontend

A065234 Fill a triangular array by rows by writing numbers 1 up to b(0), 1 up to b(1), etc., where b(n) are the decagonal numbers. The first elements of the rows form a(n).