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 A171233 Array, T(n,k) = 2*(n/k), if n mod k = 0; otherwise, T(n,k) = 1. Read by antidiagonals. 2

%I

%S 2,4,1,6,2,1,8,1,1,1,10,4,2,1,1,12,1,1,1,1,1,14,6,1,2,1,1,1,16,1,4,1,

%T 1,1,1,1,18,8,1,1,2,1,1,1,1,20,1,1,1,1,1,1,1,1,1,22,10,6,4,1,2,1,1,1,

%U 1,1,24,1,1,1,1,1,1,1,1,1,1,1,26,12,1,1,1,1,2,1,1,1,1,1,1,28,1,8,1,4,1,1,1

%N Array, T(n,k) = 2*(n/k), if n mod k = 0; otherwise, T(n,k) = 1. Read by antidiagonals.

%C T(n,3): continued fraction expansion of e - 1.

%F T(n,k) = A171232(n,k) + A077049(n,k).

%e Array begins

%e 2 1 1 1 ...

%e 4 2 1 1 ...

%e 6 1 2 1 ...

%e 8 4 1 2 ...

%e ...........

%p A171233 := proc(n,k) if n mod k <> 0 then 1; else 2*n/k ; end if; end proc: seq(seq(A171233(d-k+1,k),k=1..d),d=1..17) ; # _R. J. Mathar_, Dec 08 2009

%Y Cf. T(n,1) = A005843(n-1), A171232, A077049.

%K cofr,nonn,tabl

%O 1,1

%A _Ross La Haye_, Dec 05 2009

%E Terms beyond the 6th antidiagonal from _R. J. Mathar_, Dec 08 2009

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Last modified May 25 01:25 EDT 2019. Contains 323534 sequences. (Running on oeis4.)