17956

Appears in sequences

• a(n) = (4n + 2)^2.at n=33A016826
• a(n) = (5*n + 4)^2.at n=26A016898
• a(n) = (6*n + 2)^2.at n=22A016934
• a(n) = (7*n + 1)^2.at n=19A016994
• a(n) = (8*n+6)^2.at n=16A017138
• a(n) = (9*n + 8)^2.at n=14A017258
• a(n) = (10*n + 4)^2.at n=13A017318
• a(n) = (11*n + 2)^2.at n=12A017414
• a(n) = (12*n + 2)^2.at n=11A017546
• Numbers whose base-5 representation contains exactly three 1's and three 3's.at n=29A045247
• Least k such that A052343(k)=n.at n=9A052345
• Smallest number which is the sum of two positive triangular numbers in exactly n different ways.at n=9A052346
• Indices of A052343 (ways to write n as sum of two triangular numbers) where record values are reached.at n=7A052348
• Indices of A052344 (ways to write n as sum of two nonzero triangular numbers) where record values are reached.at n=7A053587
• Duplicate of A067178.at n=12A061093
• Squares with digital root 1.at n=29A061099
• a(1) = 1; a(n) is smallest square > a(n-1) such that a(n) + a(n-1) is a prime.at n=23A062067
• A B_2 sequence: a(n) is the smallest square such that pairwise sums of not necessarily distinct elements are all distinct.at n=42A062295
• Smallest square with digit sum n (or 0 if no such square exists).at n=27A062685
• Numbers having exactly four anti-divisors.at n=21A066469