57415

Appears in sequences

• Iccanobirt numbers (5 of 15): a(n) = R(a(n-1)) + a(n-2) + R(a(n-3)), where R is the digit reversal function A004086.at n=16A102115
• Iccanobirt semiprimes (5 of 15): Semiprime numbers in A102115.at n=3A102195
• Number of ways to build a contiguous building with n LEGO blocks of size 2 X 3 on top of a fixed block of the same size.at n=2A123826