A065232 - cp's OEIS frontend

A065232 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 octagonal numbers. The first elements of the rows form a(n).

%I A065232 #5 Nov 01 2024 15:05:30
%S A065232 1,1,3,6,2,7,13,20,7,16,26,37,9,22,36,51,2,19,37,56,76,1,23,46,70,95,
%T A065232 121,15,43,72,102,133,165,22,56,91,127,164,202,16,56,97,139,182,226,
%U A065232 271,37,84,132,181,231,282,334,46,100,155,211,268,326,385,37,98,160
%N A065232 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 octagonal numbers. The first elements of the rows form a(n).
%Y A065232 Mini-index to these sequences: A064766, A064865, A064866, A065221-A655234 are all of the same type. See A064766 for a detailed explanation.
%K A065232 easy,nonn
%O A065232 0,3
%A A065232 _Floor van Lamoen_, Oct 22 2001

cp's OEIS Frontend

A065232 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 octagonal numbers. The first elements of the rows form a(n).