1,3

Each n occurs A000041(n) times in total.

Where are the first and the last occurrence of each n located?

Antti Karttunen, Table of n, a(n) for n = 1..8192

a(n) = Sum_{i=A203623(n-1)+2..A203623(n)+1} A241918(i).

a(n) = A056239(A241909(n)).

a(n) = A227183(A075158(n-1)).

a(A000040(n)) = a(A000079(n)) = n for all n >= 1.

a(A122111(n)) = a(n) for all n.

a(A243051(n)) = a(n) for all n, and likewise for A243052, A243053 and other rows of A243060.

Cf. A243504 (the products of parts), A241918, A000041, A227183, A075158, A056239, A241909.

Sequence in context: A078664 A328388 A325954 * A069581 A274061 A284009

Adjacent sequences: A243500 A243501 A243502 * A243504 A243505 A243506

nonn

Antti Karttunen, Jun 05 2014

approved