A277015 Numbers whose squares are present in A276573 (the infinite trunk of least squares beanstalk).

0, 4, 8, 12, 16, 19, 20, 24, 36, 40, 45, 48, 56, 60, 68, 72, 80, 83, 84, 92, 96, 104, 109, 112, 120, 124, 132, 136, 140, 144, 147, 148, 156, 160, 164, 168, 173, 176, 180, 192, 204, 208, 211, 216, 220, 224, 228, 232, 237, 240, 252, 264, 272, 275, 276, 280, 284

Offset

0,2

Comments

Indexing starts from zero because a(0)=0 is a special case in this sequence.

Links

Antti Karttunen, Table of n, a(n) for n = 0..130

Formula

a(n) = A000196(A277016(n)) = A000196(A276573(A277014(n))).

Prog

(Scheme) (define (A277015 n) (A000196 (A277016 n)))

Crossrefs

Cf. A000196, A002828, A276573, A277014, A277016 (the corresponding squares), A277025 (multiples of four present / 4).

Positions of squares in A277023, zeros in A277024.

Sequence in context: A311121 A351543 A354515 * A311122 A190714 A311123

Adjacent sequences: A277012 A277013 A277014 * A277016 A277017 A277018

Keyword

nonn

Author

Antti Karttunen, Oct 03 2016

Status

approved