70680

Appears in sequences

• First differences of A069474, successive differences of (n+1)^6-n^6.at n=12A069475
• a(n) = a(n-1) + a(n-4); first four terms are 0,1,2,3.at n=35A078467
• Amicable triples. Sequence gives sigma values: A125490(n) + A125491(n) + A125492(n).at n=2A137231
• Number of (n+4)X7 binary arrays with every 5X5 subblock commuting with each horizontal and vertical neighbor 5X5 subblock.at n=11A186603
• Number of fixed points over all unlabeled functions on n nodes.at n=12A217898
• Numbers k such that 7*10^k - 99 is prime.at n=26A294632
• a(n) = 4*3*2*1 - 8*7*6*5 + 12*11*10*9 - 16*15*14*13 + ... - (up to the n-th term).at n=22A319887
• Expansion of (-1 + Product_{k>=1} 1 / (1 + (-x)^k))^4.at n=33A341243