112875

Appears in sequences

• a(n) = 441*n^2 - 21.at n=15A145678
• a(n) = 256*n^2 - n.at n=20A158010
• Odd numbers divisible by 3 which are neither of the form p + 3^m + 1 nor of the form p + 3^m - 1 with p prime.at n=21A282191