A277712 Positions of 2's in A264977; positions of 3's in A277330.

2, 10, 26, 58, 82, 122, 170, 250, 346, 418, 506, 562, 626, 698, 842, 1018, 1130, 1258, 1402, 1690, 1858, 2042, 2266, 2522, 2810, 3386, 3722, 4090, 4538, 5050, 5330, 5626, 6242, 6626, 6778, 7450, 7810, 8186, 9082, 9682, 10106, 10418, 10514, 10666, 11258, 11986, 12490, 13258, 13562, 14906, 15626, 16378, 17074, 18170, 19186, 19370, 19810

Offset

1,1

Comments

Positions in A260443 of terms that are three times a perfect square (terms in A033428, although not all of them are present in A260443).

Links

Table of n, a(n) for n=1..57.

Formula

a(n) = 2*A277701(n).

Prog

(Scheme, with Antti Karttunen's IntSeq-library, two implementations)
(define A277712 (MATCHING-POS 1 1 (lambda (n) (= 2 (A264977 n)))))
(define A277712 (MATCHING-POS 1 1 (lambda (n) (= 3 (A277330 n)))))

Crossrefs

Row 2 of A277710.

Cf. A033428, A260443, A264977, A277701, A277330.

Cf. also A277713.

Sequence in context: A045605 A294871 A212969 * A009307 A131130 A099969

Adjacent sequences: A277709 A277710 A277711 * A277713 A277714 A277715

Keyword

nonn

Author

Antti Karttunen, Oct 28 2016

Status

approved