39181

Properties

Appears in sequences

• Initial prime p introducing a prime sextuplet of consecutive primes as follows: {p, p+10, p+18, p+28, p+36, p+46} with the corresponding prime-difference-pattern is {10,8,10,8,10}.at n=1A102332
• Number of symmetric bushes with n edges. I.e., number of ordered trees with n edges, no non-root vertices of outdegree 1 and symmetrical with respect to the vertical axis passing through the root.at n=25A125189
• The least number s > 1 having exactly n fives in the periodic part of the continued fraction of sqrt(s).at n=26A206585
• Number of 3Xn 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 zero 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=10A240048
• G.f. satisfies A(x) = 1 + x/(1 - x^4) * A(x/(1 - x^4)).at n=20A360891
• Prime numbersat n=4125