A225642 -id:A225642 - cp's OEIS frontend

A225645 Partial sums of A225644.

1, 2, 3, 5, 7, 10, 13, 16, 19, 23, 27, 32, 37, 43, 48, 53, 58, 64, 69, 76, 82, 89, 95, 102, 109, 116, 123, 131, 139, 147, 156, 165, 174, 184, 193, 203, 212, 221, 231, 241, 251, 261, 271, 282, 294, 305, 316, 328, 340, 351, 362, 375, 387, 399, 411, 423, 435, 447

Offset: 1

Antti Karttunen, May 15 2013

nonn

A225642(a(n)) = n (Note that some terms, like 6 for example, can occur multiple times in A225642.)

Cf. A225642, A225644, A225635.

A225641 Transpose of A225640.

Original entry on oeis.org

1, 1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 2, 6, 4, 1, 1, 2, 6, 12, 5, 1, 1, 2, 6, 12, 30, 6, 1, 1, 2, 6, 12, 60, 30, 7, 1, 1, 2, 6, 12, 60, 60, 84, 8, 1, 1, 2, 6, 12, 60, 60, 420, 120, 9, 1, 1, 2, 6, 12, 60, 60, 420, 840, 180, 10, 1, 1, 2, 6, 12, 60, 60, 420, 840, 1260, 210, 11

Offset: 0

Antti Karttunen, May 15 2013

See comments at A225640.

Irregular table A225642 gives A225644(n) distinct terms from the beginning of each row.

(define (A225641 n) (A225640bi (A002262 n) (A025581 n)))

cp's OEIS Frontend

A225645 Partial sums of A225644.

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