60495

Appears in sequences

• a(n) = (7*n^3 + 6*n^2 + 5*n) / 6.at n=37A101165
• Partial sums of A102659 read as decimal integers.at n=12A135255
• a(n) = (1/5)*A290909(n), n>= 0.at n=9A290910
• Solution of the complementary equation a(n) = 3*a(n-2) + b(n-2), where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=18A295139
• Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n) - 1, where a(0) = 2, a(1) = 4, b(0) = 1, b(1) = 3, b(2) = 5, and (a(n)) and (b(n)) are increasing complementary sequences.at n=19A295961
• Numbers k such that A353802(k) / sigma(sigma(k)) is an integer > 1, where A353802(n) = Product_{p^e||n} sigma(sigma(p^e)).at n=44A353807