31040

Appears in sequences

• Number of degree-n permutations of order exactly 3.at n=10A001471
• Gaps of 9 in sequence A038593 (upper terms).at n=22A038658
• Penrice Christmas gift numbers, Card-matching numbers (Dinner-Diner matching numbers).at n=31A059057
• Card-matching numbers (Dinner-Diner matching numbers) for 5 kinds of cards.at n=13A059071
• Number of atoms in cluster of n layers around C_60.at n=20A063498
• a(n) = number of elements of order n in simple group Alt(10) of order 1814400.at n=2A145770
• Numbers k such that 303*2^k+1 is prime.at n=43A322916
• Numbers k for which there exists m such that the sum from 1 to m and the sum from m + 1 to k are both perfect squares.at n=37A388659