

A361514


Lengths of rows when A361511 is regarded as an irregular triangle.


3



1, 2, 2, 2, 2, 3, 2, 4, 3, 4, 3, 4, 7, 3, 5, 6, 6, 8, 4, 6, 3, 8, 6, 6, 6, 9, 5, 8, 6, 8, 5, 7, 7, 9, 8, 9, 9, 9, 12, 9, 10, 10, 10, 10, 14, 7, 15, 11, 14, 7, 14, 11, 15, 9, 11, 12, 10, 15, 10, 14, 16, 10, 14, 11, 13, 13, 15, 13, 14, 15, 19, 14, 13, 17, 18, 12, 13, 14, 13, 16
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OFFSET

1,2


COMMENTS

Essentially the first differences of A361512.


LINKS



MATHEMATICA

nn = 750; c[_] = False; f[n_] := DivisorSigma[0, n]; a[1] = k = m = 1; MapAt[# + 1 &, #, 1] &@ Reap[Do[(If[c[#], a[n] = # + f[a[m]] ; m++, a[n] = f[#] ; Sow[n  k  1]; Set[k, n  1]]; c[#] = True) &[a[n  1]], {n, 2, nn}] ][[1, 1]] (* Michael De Vlieger, Apr 08 2023 *)


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



