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 A297630 Row sums of A297628. 1
 1, 2, 5, 20, 137, 1478, 22925, 481448, 13138193, 451749962, 19104365333, 974417603132, 58981977530777, 4179837144348686, 342799255549127837, 32212592211380729168, 3438255899105307857441, 413670348773363088131474, 55722273751954119897519653 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Apparently (apart from offset) the same as A297629, essentially column 1 of A297628 - R. J. Mathar, Jan 09 2018 LINKS Table of n, a(n) for n=0..18. PROG (Julia) function A297630List(len::Int) R = Array{BigInt}(len) A = fill(BigInt(0), len+1); A[1] = 1 for n in 1:len for k in n:-1:2 A[k] += A[k+1] end for k in 2: 1:n A[k] += A[k-1] end R[n] = sum(A[1:n]) end return R end println(A297630List(19)) CROSSREFS Cf. A297628, A297629. Sequence in context: A156073 A006366 A012317 * A297629 A118181 A140988 Adjacent sequences: A297627 A297628 A297629 * A297631 A297632 A297633 KEYWORD nonn AUTHOR Peter Luschny, Jan 02 2018 STATUS approved

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Last modified April 24 22:17 EDT 2024. Contains 371964 sequences. (Running on oeis4.)