A277014 -id:A277014 - cp's OEIS frontend

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

Antti Karttunen, Oct 03 2016

nonn

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

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

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

Positions of squares in A277023, zeros in A277024.

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

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

A277016 Squares present in A276573 (the infinite trunk of least squares beanstalk).

Original entry on oeis.org

0, 16, 64, 144, 256, 361, 400, 576, 1296, 1600, 2025, 2304, 3136, 3600, 4624, 5184, 6400, 6889, 7056, 8464, 9216, 10816, 11881, 12544, 14400, 15376, 17424, 18496, 19600, 20736, 21609, 21904, 24336, 25600, 26896, 28224, 29929, 30976, 32400, 36864, 41616, 43264, 44521, 46656, 48400, 50176, 51984, 53824, 56169, 57600, 63504, 69696, 73984, 75625, 76176, 78400, 80656

Offset: 0

Antti Karttunen, Oct 03 2016

nonn

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

Cf. A276573, A277014, A277015 (square roots of these numbers), A277025.

(define (A277016 n) (A276573 (A277014 n)))

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

A278497 a(n) = Least number with the prime signature of A276573(n).

Original entry on oeis.org

2, 6, 8, 2, 6, 16, 12, 6, 24, 8, 30, 32, 6, 6, 24, 2, 12, 48, 6, 2, 24, 2, 12, 64, 2, 30, 72, 12, 30, 48, 2, 6, 24, 60, 6, 96, 12, 30, 30, 72, 48, 6, 12, 120, 6, 60, 128, 2, 6, 24, 2, 6, 144, 12, 2, 24, 6, 6, 96, 48, 30, 120, 12, 2, 48, 2, 6, 30, 24, 192, 30, 60, 72, 6, 12, 210, 6, 216, 6, 6, 96, 2, 30, 2, 12, 240, 32, 12, 24, 2, 30, 256, 6, 12, 120, 6, 120

Offset: 1

Antti Karttunen, Nov 25 2016

nonn

Antti Karttunen, Table of n, a(n) for n = 1..10028

Cf. A002828, A046523, A260733, A276573, A278160, A278498, A278499.
Cf. A277014 (gives the indices of squares).
Cf. also A278232.

(define (A278497 n) (A046523 (A276573 n)))

a(n) = A046523(A276573(n)).

For all n >= 1, a(A260733(1+n)) = A278160(n).

cp's OEIS Frontend

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

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A277016 Squares present in A276573 (the infinite trunk of least squares beanstalk).

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A278497 a(n) = Least number with the prime signature of A276573(n).

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