A083072 - OEIS

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A083072

A subdiagonal of number array A083064.

%I #5 Mar 04 2018 21:17:27

%S 1,4,29,286,3511,51668,888889,17538454,390892451,9720791092,

%T 267004296901,8031916155134,262709978263279,9285541905849316,

%U 352765522430193905,14337731083770642838,620867368421052631579

%N A subdiagonal of number array A083064.

%F a(n) = ((n+2)*(n+4)^n + 1)/(n+3).

%Y Cf. A083071, A083069.

%K easy,nonn

%O 0,2

%A _Paul Barry_, Apr 21 2003