34108

Appears in sequences

• a(n) is smallest difference d of an arithmetic progression dk+1 whose first prime occurs at the n-th position.at n=38A047980
• a(n) = A047980(2n+1).at n=19A047982
• Number of Catalan objects of size n fixed by Catalan Automorphism A057511/A057512 (deep rotation of general parenthesizations/plane trees).at n=26A057546
• Iccanobirt numbers (13 of 15): a(n) = R(R(a(n-1)) + a(n-2) + R(a(n-3))), where R is the digit reversal function A004086.at n=20A102123
• Number of binary strings of length n with equal numbers of 01110 and 10001 substrings.at n=16A164264