18786

Appears in sequences

• Numbers with multiplicative persistence value 6.at n=21A046515
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,15.at n=37A064244
• Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,45.at n=8A064259
• Generalized Pascal Triangle - satisfying the same recurrence as Pascal's triangle, but with a(n,0)=1 and a(n,n)=10^n (instead of both being 1).at n=59A164844
• Composite numbers whose multiplicative persistence is 6.at n=20A199996
• Sum of the largest parts in the partitions of 3n into 3 parts.at n=23A236370
• Number of n X 2 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=43A239852
• Number of partitions of n such that m(greatest part) = m(1), where m = multiplicity.at n=48A240078
• The total number of different isosceles trapezoids, excluding squares, that can be drawn on an n X n square grid where the corners of each individual trapezoid lie on a lattice point.at n=35A272459
• Number of irredundant sets in the n-Andrásfai graph.at n=8A290587
• Numbers that are the sum of six fourth powers in four or more ways.at n=34A345561
• Numbers that are the sum of six fourth powers in exactly four ways.at n=32A345816