129618

Appears in sequences

• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 40.at n=17A031718
• Using the US English names for the nonnegative integers, assign each letter a numerical value as in A073327 (A=1, B=2, ..., Z=26), treat the name as a base-27 integer, and convert to decimal.at n=4A072959
• Duplicate of A072959.at n=4A087096
• a(n) = 324*n^2 + 18.at n=20A158590
• Number of length-4 0..n arrays with no repeated value equal to the previous repeated value.at n=17A269468
• Heptagonal numbers (A000566) in which parity of digits alternates.at n=23A297646
• a(n) is the number of 2-point antichains in the poset D_{2n+1} of type D, whose elements are compositions of 2n+1.at n=35A344791
• Integers k for which the sum of digits of Fibonacci(k) is a Fibonacci number.at n=32A383045