A001021

View A001021 at the OEIS

identification: the entry's rule defines the sequence for every index; tail: the sequence is the entry's tail after some prefix rows; match_*: finite agreement only.

• A038221 → basis A013609 (match row sums)
  1 · 6, 6 · 36, 72, 36 · 216, 648, 648, 216 … row sums 1, 12, 144, 1728, 20736, 248832, …
  (−∞, 0] nonnegative rational roots
• A038208 → basis A013611 (match row sums)
  1 · 4, 8 · 16, 64, 64 · 64, 384, 768, 512 … row sums 1, 12, 144, 1728, 20736, 248832, …
  (−∞, 0] nonnegative rational roots
• A038338 → γ (match row sums)
  144 · 1728 · 20736 · 248832 … row sums 144, 1728, 20736, 248832, 2985984, …
  (−∞, 0] nonnegative rational roots
• A038303 → basis A007318 (match row sums)
  1 · 11, 1 · 121, 22, 1 · 1331, 363, 33, 1 … row sums 1, 12, 144, 1728, 20736, 248832, …
  (−∞, 0] nonnegative rational roots
• A038291 → basis A013609 (match row sums)
  1 · 10, 2 · 100, 40, 4 · 1000, 600, 120, 8 … row sums 1, 12, 144, 1728, 20736, 248832, …
  (−∞, 0] nonnegative rational roots
• A038279 → basis A013610 (match row sums)
  1 · 9, 3 · 81, 54, 9 · 729, 729, 243, 27 … row sums 1, 12, 144, 1728, 20736, 248832, …
  (−∞, 0] nonnegative rational roots
• A038271: Triangle whose (i,j)-th entry is binomial(i,j)*7^(i-j)*5^j. (match row sums)
  1 · 7, 5 · 49, 70, 25 · 343, 735, 525, 125 … row sums 1, 12, 144, 1728, 20736, 248832, …
  A038271 (−∞, 0) nonnegative rational roots
• Triangle of coefficients in expansion of (1+11x)^n. (match row sums)
  1, 22, 121 · 1, 33, 363, 1331 … row sums 144, 1728, 20736, 248832, 2985984, …
  (−∞, 0) nonnegative rational roots
• A027466 → basis A013611 (match row sums)
  1 · 8, 4 · 64, 64, 16 · 512, 768, 384, 64 … row sums 1, 12, 144, 1728, 20736, 248832, …
  (−∞, 0] nonnegative rational roots