23364
domain: N
Appears in sequences
- Powers of fourth root of 5 rounded down.at n=25A018057
- Number of nonnegative solutions of x1^2 + x2^2 + ... + x12^2 = n.at n=13A045853
- Numbers k such that 30*R_k + 1 is prime, where R_k = 11...1 is the repunit (A002275) of length k.at n=25A055520
- a(n) = 2*n*(2*n^2 + 1).at n=18A061804
- Row sums of triangle A074135.at n=35A074132
- Sum of terms in each group in A074147.at n=35A074149
- Convolution of the prime numbers with phi(n) convoluted with sigma(n).at n=16A086735
- First differences of sequence defined in A101172. Also, the Mobius transform of that sequence.at n=16A101173
- Numbers k for which (7+k!)/7 is prime.at n=21A139065
- Expansion of -2*x^2*(-3-2*x+x^2-x^3-2*x^4+x^5) / ( (1+x)^2*(x-1)^4 ).at n=36A178465
- Number of (w,x,y) with all terms in {0,...,n} and odd range.at n=35A212976
- Numbers m such that m divides Sum_{k=1..m} lambda(k).at n=11A227975
- Magic sums of 4 X 4 semimagic squares composed of consecutive primes.at n=21A270864
- The PD_t(n) function (Number of tagged parts over all the partitions of n with designated summands).at n=20A293421
- Positions of 0's in A330314.at n=31A330325
- Square array T(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of g.f. 1/(1 - 2*k*x - k*x^2).at n=59A342134
- Least k such that A352483(k) = n, or -1 if no such k exists.at n=17A351913