A316482 Squares whose arithmetic mean of digits is 2 (i.e., the sum of digits is twice the number of digits).

21025, 23104, 32041, 36100, 63001, 10125124, 10176100, 10233601, 10530025, 10824100, 11122225, 11303044, 11424400, 12040900, 12103441, 12222016, 12602500, 13315201, 13322500, 14055001, 14600041, 16008001, 16080100, 16810000, 20205025, 20214016, 20611600

Offset

1,1

Comments

Each term's number of digits is in A174438 (Numbers that are congruent to {0, 2, 5, 8} mod 9). For every positive term k in A174438, this sequence contains at least one k-digit term, with the exception of k=2. (See A316480.)

Links

Jon E. Schoenfield, Table of n, a(n) for n = 1..10000

Example

145^2 = 21025, a 5-digit number whose digit sum is 2+1+0+2+5 = 10 = 2*5, so 21025 is a term.

Crossrefs

Cf. A069711, A174438, A316480.

Intersection of A000290 and A061385. - Michel Marcus, Jul 06 2018

Sequence in context: A157083 A183639 A181260 * A340897 A371354 A228299

Adjacent sequences: A316479 A316480 A316481 * A316483 A316484 A316485

Keyword

nonn,base

Author

Jon E. Schoenfield, Jul 04 2018

Status

approved