2162161

Appears in sequences

• a(n) is least N > 1 congruent to -1,0, or 1 mod i for all i=1,...,n.at n=21A056697
• a(n) is least N > 1 congruent to -1,0, or 1 mod i for all i=1,...,n.at n=22A056697
• a(n) is least N > 1 congruent to -1,0, or 1 mod i for all i=1,...,n.at n=23A056697
• Smallest number that is centered polygonal in exactly n ways.at n=30A063773
• a(n) = smallest m such that A187824(m) = n, or -1 if A187824 never takes the value n.at n=24A220890
• Where record values occur in A187824.at n=14A220891
• a(n) = the least integer that is centered polygonal in exactly n ways.at n=30A279830
• The n-th term is the smallest integer > 1 that is congruent to +1 or -1 modulo k for all 2 <= k <= n.at n=17A317650
• The n-th term is the smallest integer > 1 that is congruent to +1 or -1 modulo k for all 2 <= k <= n.at n=18A317650
• The n-th term is the smallest integer > 1 that is congruent to +1 or -1 modulo k for all 2 <= k <= n.at n=19A317650
• The n-th term is the smallest integer > 1 that is congruent to +1 or -1 modulo k for all 2 <= k <= n.at n=20A317650
• Constant term in the expansion of (1 + w^4 + x^4 + y^4 + z^4 + 1/(w*x*y*z))^n.at n=13A361705