74341

Appears in sequences

• Number of n X n binary arrays symmetric under 90-degree rotation with all ones connected only in a T-shape (1,1), (1,2), (1,3), (2,2) in any orientation.at n=12A145931
• Composite numbers n such that the distinct digits in n and the distinct digits in the proper divisors of n are the same.at n=34A237713
• Number of Carlitz compositions of n with exactly five descents.at n=9A241695
• Array read by upwards antidiagonals: A(n, k) = index of prime(k)^n in A098550.at n=51A253609
• Numbers k such that the set of all the decimal digits of k is the same as the set of all the decimal digits of the proper divisors of k.at n=35A282755