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Primes p such that for all m, M(m) is not divisible by p^2 where M(n) is the n-th Motzkin number A001006.
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%I #11 May 23 2022 12:12:01

%S 5,13,31,37,61,79,97,103

%N Primes p such that for all m, M(m) is not divisible by p^2 where M(n) is the n-th Motzkin number A001006.

%H E. Rowland and R. Yassawi, <a href="https://doi.org/10.5802/jtnb.901">Automatic congruences for diagonals of rational functions</a>, Journal de Théorie des Nombres de Bordeaux, 27(1):245-288, 2015.

%H Armin Straub, <a href="https://arxiv.org/abs/2205.09902">On congruence schemes for constant terms and their applications</a>, arXiv:2205.09902 [math.NT], 2022. See Theorem 3.3 p. 13.

%Y Cf. A001006, A001248, A354293.

%Y Motzkin numbers A001006 read mod 2,3,4,5,6,7,8,11: A039963, A039964, A299919, A258712, A299920, A258711, A299918, A258710.

%K nonn,more

%O 1,1

%A _Michel Marcus_, May 23 2022