28795

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)} T(n-k,k), T given by A026736.at n=21A026746
• Numbers having four 4's in base 9.at n=7A043472
• Numbers whose base-3 representation contains exactly one 0 and no 2's.at n=39A044994
• Standard deviation (rounded) of composites below 10^n.at n=4A092801
• Numbers k such that (5*10^k - 143)/3 is prime.at n=25A271821
• Numbers k such that k!6 + 24 is prime, where k!6 is the sextuple factorial number (A085158 ).at n=26A288446
• Numbers k such that 351*2^k+1 is prime.at n=35A323032