24978

Appears in sequences

• Aliquot sequence starting at 966.at n=11A014363
• Numbers n such that 23*2^n-1 is prime.at n=11A050537
• T(n,n-5), where T is the array in A055830.at n=22A055832
• Numbers m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,39.at n=5A064256
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (-1, 1, 1), (0, -1, 1), (0, 0, 1), (1, 0, -1)}.at n=10A148352
• Lexicographically earliest unbounded aliquot-like sequence based on the Dedekind psi function: a(1) = 318, a(n) = t(a(n-1)) where t(k) = A001615(k) - k.at n=15A323328