40861

Appears in sequences

• 1000000n+1, 1000000n+3, 1000000n+7, 1000000n+9 are all primes.at n=3A064965
• Row sums of triangle A116868 (called Y(1,3)).at n=5A116862
• Generalized Catalan triangle of Riordan type, called C(1,3).at n=30A116866
• a(n) = a(n-1) + a(n-2) + a([2n/3]), where a(0) = 1, a(1) = 1, a(2) = 1.at n=20A298342
• Decimal numbers m such that the product of the binary string of m and the binary string of m in reverse contains the binary string of m as a substring.at n=45A342130