30988

Appears in sequences

• Starting positions of strings of three 7's in the decimal expansion of Pi.at n=32A083631
• E.g.f.: 1/Product_{k>0} (1+x^k/k!)^k.at n=8A294494
• Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of Product_{j>=1} 1/(1 - j^k*x^j)^j.at n=59A294582
• Number of nX3 0..1 arrays with every element equal to 2, 3 or 5 king-move adjacent elements, with upper left element zero.at n=14A297871
• Number of labeled connected graphs with loops with n edges (the vertices are {1,2,...,k} for some k).at n=6A322151
• Number of integer partitions of n whose omega-sequence does not cover an initial interval of positive integers.at n=39A325262
• a(n) is the determinant of the 2 X 2 matrix whose entries (when read by rows) are the n-th primes ending in 1, 3, 7, 9 respectively.at n=15A335592
• a(n) = prime(n)*(prime(n-1) + prime(n+1)).at n=29A357679
• Numbers N such that N + the sum of the cubes of its digits is again a third power.at n=23A362953
• Consecutive states of the linear congruential pseudo-random number generator (257*s + 41) mod 2^16 when started at s=1.at n=19A384961