54687
domain: N
Appears in sequences
- Sum_{T(i,j)}, 0<=j<=i, 0<=i<=n, where T is the array in A026386.at n=12A026396
- Numbers k such that both the k-th and (k+1)-th primes have the same sum of digits squared but different sets of digits.at n=29A109183
- a(n) = (7*5^n - 1)/2.at n=6A198766
- a(n) is the period of the oscillating pattern formed by a diagonal line of 2*n cells in the Life-like cellular automaton B2e3ijkn4cz5/S236.at n=59A323382
- Record terms of A349664.at n=30A349665