62481

Appears in sequences

• Numbers k such that x^k + x + 1 is irreducible over GF(2).at n=38A002475
• a(n) = a(n-1) + a(n-2) + 1, with a(0) = 1 and a(1) = 7.at n=20A022321
• Expansion of 1/((1-x)*(1-5*x)*(1-8*x)*(1-10*x)).at n=4A022565
• Odd triangular numbers with prime indices.at n=34A034954
• Triangular numbers not divisible by 10 whose reverse is pentagonal.at n=4A066758
• Triangular numbers whose digit reversal is a pentagonal number (A000326).at n=5A115682
• Base-13 Armstrong or narcissistic numbers (written in base 10).at n=23A161950
• Fourth powers (n * n * n * n) in carryless arithmetic mod 10.at n=21A169886
• a(n) = m*(m+1)/2, where m = floor(n^(3/2)).at n=49A185541
• A010062(2^n-1).at n=13A228952
• Intersection of A099011 and A327651.at n=34A327652
• Hexagonal numbers that are sphenic numbers.at n=35A380007