93025
domain: N
Appears in sequences
- Let S denote the palindromes in the language {0,1,2,3,4}*; a(n) = number of words of length n in the language SS.at n=10A007058
- Squares formed by concatenating other squares, not ending in 0.at n=33A009404
- a(n) = (9*n + 8)^2.at n=33A017258
- a(n) = (10*n + 5)^2.at n=30A017330
- a(n) = (11*n + 8)^2.at n=27A017486
- a(n) = (12*n + 5)^2.at n=25A017582
- Palindromic squares in base 16.at n=9A029734
- Squares which are the concatenation of two nonzero squares.at n=16A039686
- Squares with initial digit '9'.at n=13A045793
- Numbers n such that n | 7^n + 6^n + 5^n + 4^n + 3^n.at n=16A057255
- Numbers k such that k | 6^k + 5^k + 4^k + 3^k + 2^k.at n=40A057256
- a(n) = n*(n+1)*(n+2)*(n+3)+1 = (n^2 + 3*n + 1)^2.at n=16A062938
- a(n) = x^2 = A090116(n)^2 is the least square that is "surrounded" by two closest primes, by prevprime(x^2) and nextprime(x^2) whose difference nextprime - prevprime = 2n.at n=22A090117
- Member r=19 of the family of Chebyshev sequences S_r(n) defined in A092184.at n=5A098304
- Squares of A001076.at n=5A099279
- Squares of the form 3S + 4, where S is a semiprime.at n=29A112630
- a(n) = a(n-3) + A001654(n-1) with a(0)=0, a(1)=0 and a(2)=1.at n=14A115730
- Left truncatable squares, ending in 5.at n=19A117246
- G.f.: 1/[(1-2x)(1+2x+3x^2)].at n=18A122508
- Squares which are concatenation of two positive squares with possible intervening zeros.at n=17A147608