26381

Appears in sequences

• Dying rabbits: a(n) = a(n-1) + a(n-2) - a(n-10).at n=23A023440
• Number of ternary rooted trees with n nodes and height at most 7.at n=15A036375
• Indices of primes in the sequence defined by A(0) = 29, A(n) = 10*A(n-1) - 71 for n > 0.at n=9A101955
• Numbers k such that (2^k - k + 1)*2^k - 1 is prime.at n=17A201361
• Number of 2 X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or zero plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4.at n=14A239859
• Nonsemiprimes in A306097 = A121707 \ A267999.at n=37A321488