0,3

This sequence gives the number of times n is a member of an arithmetic triple a<b<c for which the other two terms are members of A005836. A005836 is the minimal sequence that disallows any arithmetic triples.

Max Barrentine, Table of n, a(n) for n = 0..19683

a(n) = A273513(n) + A273514(n) + A262097(n).

Cf. A005836, A262097, A273513, A273514, A273516.

Sequence in context: A151673 A005397 A259124 * A021718 A193108 A212044

Adjacent sequences: A273512 A273513 A273514 * A273516 A273517 A273518

nonn,base

Max Barrentine, May 23 2016

approved